Benjamin "Ben" Tennyson is the main character of the series. He is first introduced in the episode "And Then There Were 10", where he finds the Omnitrix and, throughout the series, learns to use the powerful alien device responsibly. This theme was further explored in the episode 'Kevin 11'.
|Benjamin "Ben 10" Tennyson|
|Voice Actor:|| Tara Strong (Ben 10)|
Yuri Lowenthal (Alien Force/Evolutions)
|Age:|| 4 (Don't Drink Water)|
10 (Ben 10)
15 (Alien Force)
30 (Ben 10,000)
40 (Ken 10)
|First Appearance:||Ben 10 Episode 1|
|Affiliations:|| Ben's Team|
|Relative:|| Carl Tennyson (father)|
Sandra Tennyson (mother)
Max Tennyson (grandfather)
Verdona Tennyson (grandmother)
Frank Tennyson (uncle)
Lili Tennyson (aunt)
Ken Tennyson (cousin)
Gwen Tennyson (cousin)
Julie Yamamoto (girlfriend)
11 infant Necrofriggians (children)
Ship (One sided)
German Shepard (Unknowed name)
|Alias:|| Ben 10|
Benjamin Kirby Tennyson is a typical ten-year-old boy— he plays video games, rides his bike, using the omnitrix, and often gets in mischief . No matter what bizarre form Ben takes, inside he is still the same mischievous 10-year-old boy. He is something of a glory hog, sometimes taking credit that he does not deserve. He also tends to be a sore loser, especially when it is Gwen - with whom he shares a love-hate relationship - who outdoes him. Ben is not above using the Omnitrix to pull pranks, even during urgent situations. He wears a white shirt with a black vertical stripe down the middle and brown pants. He also wears white and black shoes. In the episode "Perfect Day", he is shown with his pants down, revealing his blue-and-red sumo-slammer boxers.
In spite of all this, Ben is good-hearted and will stop at nothing to protect his family or anyone in danger. Even when not in alien form, Ben's resourcefulness has saved himself and others from many a dire situation, especially when the Omnitrix cannot activate or does not provide him with the form he originally wants. His most frequent catchphrase, usually said when something goes wrong, is "Aw, man!" His others include "It's hero time!" and "Going hero!".
In "Goodbye and Good Riddance", it is shown that Ben is, or was, very unpopular at school, being picked on by the other kids on a regular basis, although this changes after the entire population of Bellwood learns of his Omnitrix-fueled exploits over the summer. Also, in "Last Laugh", it is revealed that Ben had suffered from coulrophobia for some time, but gets over it in order to fight Zombozo.
In Ben 10: Secret of the Omnitrix, Ben revealed that he really did care for others, and not just about losing the ability to use the Omnitrix. He fought hard against Vilgax's forces, leading Azmuth to turn off the self-destruct mode on the Omnitrix and reboot the Omnitrix because he saw Ben's determination to save others.Ben has the power to 1,000903 aliens.
In the sequel, Ben is a much more mature and resourceful character, having learned the value of teamwork through his role as a goalkeeper for his soccer team, at the same time growing out of his childish antics, and is far more adept when using the Omnitrix, actually thinking about which alien would be most effective against an opponent or the most appropriate for a situation, rather than simply selecting the one with the most physical power as he originally did, though there is still a bit of the young Ben Tennyson in him. His relationship with Gwen is also better; they no longer fight, and their quips about one another are more friendly.
He now sports a black shirt, a green jacket with a white vertical line and the number 10, while his soccer uniform resembles his original clothing. He found a way to remove the Omnitrix roughly five years before the series began, allowing him to live a normal life. Ben also has a girlfriend named Julie Yamamoto, who helps his team from time to time. When Max goes missing, he teams up with Gwen and a reformed Kevin to find out about an alien conspiracy Max was working on. The Omnitrix has been recalibrated, giving Ben access to a new set of alien forms; in addition, it reconfigures into a more watch-like shape. It also carries a new weakness: if Ben's aliens are hurt, when the Omnitrix times out, so too is Ben hurt as a result, though this has not proven to be any real problem so far. Contrary to the Omnitrix's previous ill-timed deactivations, the new recalibrated Omnitrix appears to deactivate more or less to Ben's will or simply manually by rotating the dial as shown in the episode 'Alone Together', additionally it can be used multiple times in succession or indefinitely when used at its maximum, though its power will eventually deplete and will require time to recharge as shown in the episode "Good Copy Bad Copy". Although he, like Gwen, is a descendant from the Anodite race, Ben does not bear the "spark" to use their powers. Ben has also learned some degree of martial arts taught by his cousin Gwen.
In season three, it is shown that Ben has resumed acting superior and making rash decisions, thus leading the Omnitrix to decide which alien would be best for the situation. Gwen and Kevin have both been tired of this superior attitude ever since Ben, Gwen, and Kevin stopped the Highbreed invasion. Ben has also begun to tamper with the Omnitrix, which led to the release of archetypes Goop, Spidermonkey, Chromastone, and Way Big. His hand is alos severed off, and he is teleported to the Null Void.
Twenty years into the future, Ben has become a full-time superhero. He no longer bothers to conceal his identity, as he is recognized everywhere as Ben 10,000 or Ben 10-K, no matter what alien form he is using. He also has 10,000 alien forms, hence the name, and has once again unlocked the Omnitrix's master control function, allowing him to switch forms at will. Having been fighting crime for such a long time, Ben 10,000 has grown into a more strict and serious character, going so far as to stop naming his aliens (which the present Ben considers "half the fun" of using them), and has a darker way of dealing with villains, such as defeating Vilgax by literally dismembering him, though his interaction with his past self in the episode "Ben 10,000" causes him to lighten up somewhat, naming his aliens all over again. Ben's alien forms have aged with him, which is evident in their appearances and abilities. For example, Ben 10,000's XLR8 is noticeably taller with grey outlines in place of the ordinary blue, as well as being considerably faster.
- In the original series, Ben is voiced by Tara Strong.
- In Ben 10: Alien Force, Ben is voiced by Yuri Lowenthal.
- For the episodes "Ben 10,000" and "Ken 10", Ben is voiced by Fred Tataiscore.
- Although he has Anodite lineage, he has not shown signs of having Anodite powers. However, considering Azmuth added the DNA of every sentient race in the galaxy to the Omnitrix, it is likely he may have an Anodite form accessible through the Omnitrix.
- As revealed in Good Copy, Bad Copy, Ben's left eye twitches whenever he tells a lie.
- He has a strong affinity for smoothies and chili fries.
|Gwendolyn "Gwen" Tennyson|
|Voice Actor:|| Meagan Smith (Ben 10)|
Ashley Johnson (Alien Force/Evolutions)
|Age:|| 10 (Ben 10)|
15 (Alien Force)
|First Appearance:||Ben 10 Episode 1|
|Affiliations:|| Ben's Team|
|Relative:|| Frank Tennyson (father)|
Lili Tennyson (mother)
Ken Tennyson (older brother)
Benjamin Tennyson (cousin)
Max Tennyson (paternal grandfather)
Verdona Tennyson (paternal grandmother)
Kevin Ethan Levin ("boyfriend")
|Alias:||Lucky Girl (formerly)|
Gwendolyn "Gwen" Tennyson is Ben Tennyson's cousin (the two share the same birthday). Throughout the original series, she constantly bickers and insults him with dry wit and sarcasm. Gwen was first introduced in "And Then There Were 10". She uses her laptop to research any strange people and/or creatures they might come across.
In the original series, Gwen shares a love-hate relationship with Ben, insulting him with dry wit and sarcasm most of the time, in part due to their shared birthday. She uses her laptop to research any strange people and/or creatures they might come across, and is a capable gymnast and has had some training in martial arts. She has also shown an almost innate skill in using various complicated devices or objects, such as in the "What If?" episode "Gwen 10", when Gwen gained the Omnitrix instead of Ben and proved to be far more adept in its use than he initially was.
In the sequel series, Ben 10: Alien Force, Gwen (voiced by Ashley Johnson) has grown into a calm and collective teenager. In this version, Gwen wears a plain, white shirt, loosely-buttoned blue sweater, a black skirt with black tights, her hair is much longer and darker, her eyes are much darker, and her lips are more visible. Gwen, despite now being a black belt, tends to favour her magical powers over her martial art skills. She is able to create energy constructs for nearly any purpose, usually creating platforms to levitate herself (and others), beams to grab enemies, circular blasts to knock enemies back, projecting beams from her eyes that seem to simulate heat vision, and opening up interdimensional portals. She also has a wide range of other loosely defined magical abilities, such as dowsing, limited telepathy, and clairvoyance. Her powers are revealed to be alien in origin; her grandmother, Verdona, is an energy being known as an Anodite and surprisingly she is the only descendant of hers who inherited Verdona's powers. Verdona tells Gwen that what she and others originally thought of as "magic" was actually the manipulation of mana. Verdona offers to take Gwen to her home planet and train her in the mystical ways of the Anodites, but Gwen prefers to remain on Earth with Ben and Kevin. She hates being called an "energy being", referring to her Anodite heritage.
In the episode "Unearthed", an alien creature is able to see her as an Anodite, in which she looks exactly like her grandmother's true form, but slightly shorter. In "War of the Worlds", when Kevin was threatened by a Highbreed commander, she assumes her Anodite form for the first time and easily defeated the commander. She was almost overwhelmed by her own power before Kevin snaps her out of it.
During the course of the series she has developed a romantic relationship with Kevin. They have also been shown to have arguments, usually starting with Gwen always trying to force Kevin to "ask her out" and him always answering "don't push me".
In the season three premiere, Gwen gets a new outfit, a red shirt, a black vest with gray pants. Also she now holds her hair in a ponytail. Ben and Gwen seem to have revived their infamous rivalry from the original series, in part due to Ben's cockiness and inflated ego; in the third season, Gwen pours a smoothie over Ben's head, and he nearly returns the favor. In the episode "Inferno" it is revealed that Gwen suffers from claustrophobia, but she denies having it but nearly snapped under the pressure.
Given her Anodinian liniage, Gwen is capable of energy manipulation. She also has a wide range of other loosely defined magical abilities, such as dowsing, telepathy and clairvoyance.
Her powers are revealed to be alien in origin; her grandmother, Verdona, is an energy being known as an Anodite. Verdona tells Gwen that what she and others originally thought of as "magic" was actually the manipulation of a Force-like energy called mana. Verdona offers to take Gwen to her home planet and train her in the mystical ways of the Anodites, but Gwen prefers to remain on Earth with Ben and Kevin. She hates being called an "Energy being", referring to her Anodite heritage. In 'War of The Worlds', Gwen releases her Anodite form, and was almost overwhelmed by her own power before Kevin snaps her out of it.
Overall, her most notable skill is her innate, if latent, ability at magic (see Gwen's Spells). Having within her what Charmcaster calls a "magical aura", Gwen is capable of using various magical artifacts and spells. When using the magical, luck-giving Charm of Bezel, she was able to activate it instinctively, whereas Hex did or could not. Later on, when she takes and uses his staff, she was able to make it fire an energy blast—according to Charmcaster, only someone of Hex's skill should have that power. Gwen starts tapping into her magical powers when she procures a book of spells from Charmcaster in the episode "A Change of Face".
On two occasions, Gwen has the Charms of Bezel to become a superheroine by the name of Lucky Girl. At first, her ability drew from the "luck" Charm of Bezel, which innately gave her perfect luck. While wearing the charm, any action she took would result in an Rube Goldberg-style chain reaction benefiting her original intent, but usually injuring Ben in the process. She later brought back her superhero identity after obtaining the Keystone of Bezel, which increased her natural abilities to superhuman levels rather than just affecting her luck. Both times, Gwen was forced to retire when the Charms of Bezel were destroyed.
Gwen is a capable gymnast and has had some training in martial arts. At the age of fifteen it is revealed that she has already received a black belt in karate and has even started teaching Ben.
Possible future is Gwen could mary Kevin
- In the original series, Gwen is voiced by Meagan Smith.
- In Ben 10: Alien Force, Gwen is voiced by Ashley Johnson.
- In the episodes "Ben 10,000" and "Ken 10", Gwen is voiced by Tara Strong. Incidentally, Strong also voices the 10-year-old Ben.
- In the live-action movie, Ben 10: Race Against Time, Gwen was played by Haley Ramm.
- Gwen's magical abilities and even her name might have been inspired by the Sibyls from Chris 'D Lacey's series of books,The Last Dragon Chronicles. In the series, Sibyls are able to command the supernatural, and they are the descendants of a powerful magics user, Gwendolen.
- Gwen`s lucky girl suit looks simlar to Hellcat from Marvel.
- The Cat logo on Gwen in the first series looks very similar to Sly Cooper's logo.
|Kevin Ethan Levin|
|Voice Actor:|| Michael Reisz/Charlie Schlatter (Ben 10)|
Greg Cipes (Alien Force/Evolutions)
|Age:|| 11 (Ben 10)|
16 (Alien Force)
|First Appearance:||Kevin 11|
|Affiliations:|| Ben's Team|
|Abilities:|| Matter Absorbtion|
Energy Absorbtion (formaly?/unused?)
Possible Genetic Material Absorbtion
|Relative:|| Unnamed father|
Gwen Tennyson ("girlfriend")
|Alias:||Kevin 11 (formerly)|
Kevin Ethan Levin (voiced by Michael Reisz in his first appearance, Charlie Schlatter in his following ones, and by Greg Cipes in Ben 10: Alien Force) is a human-alien hybrid with the ability to absorb any type of energy and release it at will, though he seems only able to release electricity, or he may simply favour this due to it's offensive potential. The energy can be used to activate or overload various machines and can also be used to make energy blasts.
Kevin was abandoned before the start of the series due to his powers, and has been alienated ever since, this has lead to him developing anti-social behavior disorders that border on sociopathy, however, he is reformed over the course of Ben 10 Alien Force, and rejoins society and apparently recociles with his family. When absorbing energy from the Omnitrix's aliens, he becomes an incomplete, but effective, version of that alien. In his first appearance in "Kevin 11", he is first encountered by Ben Tennyson in an arcade, where he was assaulted by bullies and saved by Ben as XLR8. The two attempt to steal video games from a warehouse and get caught by the police, forcing Ben to reveal his powers to him in order to escape. Eventually, Ben breaks off their partnership when Kevin rigs two trains (one carrying money) to collide in, not caring that hundreds of innocent people would be killed. He then absorbed the abilities of Heatblast and Fourarms, using the former form's powers to get revenge on those who had wronged him. He absorbed the latter form's powers during his second battle with Ben to even the odds. After trying to take the Omnitrix from Ben, the Omnitrix emitted a feedback pulse to prevent Kevin from taking it, seemingly neutralizing his power. Kevin, however, exhibits the ability to create flame at the end of the episode.
Kevin serves as the main antagonist of the second season. His ability to project heat at the end of "Kevin 11" is a result of the Omnitrix's feedback pulse: the amount of energy it emitted allowed him to fully absorb its powers, giving him access to every alien form Ben had at the time. However, because Kevin's ability to regulate this power is poorer than that of the Omnitrix itself, the energy suppresses his human form and forces him to remain as an alien most of the time. As revealed in "Framed", Kevin blamed Ben for this, so he used the powers of the Omnitrix to start a crime spree in Los Angeles, both for his own benefit and to damage Ben's (or rather, his alien forms') reputation. Eventually, Kevin's ability to regulate the power fails altogether, causing him to permanently mutate into what Vilgax would describe as a "misshapen, chaotic amalgam of creatures from the Omnitrix." This form has: Fourarm's head, body, left eyes and legs, Grey Matter's right eye, Upgrade's upper back, Stinkfly's wings, Diamondhead's right arm, Heatblast's left arm, Wildmutt's arms below them, Ghostfreak's lines, XLR8's tail, and Ripjaws antenna, gills, and teeth.
After his mutation, Kevin gloats that he has all of Ben's powers plus his own, making him "Kevin 11" (the name Kevin is credited under in the ending sequence of the show). He has Stinkfly's ability to fly and his slime spitting. Diamond Head's diamond ability with his right arm. Fourarm's strength. Wildmutt's sniffing ability. XLR8's speed. Heatblast's ability to shoot fire out of his left arm. Ripjaw's bitting (possibly also his ability to breath under water because he has Ripjaw's gills). Although Kevin does not have all of the powers of the omnitrix aliens he copied. He does not have Grey Matters intelligence, Upgrade's ability to take control machines and his lazer vision, and Ghostfreak's ability to turn invisible and his ability to walk through walls. Despite Kevin's claim, Ben notes that Kevin's powers are only one-tenth as strong, (although this assessment may not be accurate) and Kevin never exhibits his original powers in this form (the same is true for Ghostfreak, Upgrade (though this is debatable when Kevin used XLR8's tail to slam a tray of Megacruiser food into Technorg's face), Grey Matter, or Wildmutt. Kevin's form also limits his ability to use the special powers of his alien forms. Being a random fusion of aliens, Kevin only has access to the powers most prevalent in his form. In addition to these limitations, Kevin seems unable to use the powers of any aliens Ben has gained since their original encounter.
During his third appearance in "Grudge Match", Kevin attacks Ben to get revenge, blaming his condition on Ben. As the two battle, they are abducted and forced to fight in Slix Vigma's gladiator games. During their battles, Ben helps Kevin to realize the advantages of his mutated form. Because Kevin 11 is an amalgam of aliens, he can mix and match their powers to make up for their reduced potency. Although forced to work together, Kevin's only goal was killing Ben. He is transported to a different galaxy at the end of the episode while locked in combat with Technorg, who beat him then escaped. He then took the ship as his own.
Kevin returns in the episode "Back With a Vengeance", where he teams up with Vilgax to defeat Ben, and eventually manages to remove the Omnitrix. However, he betrays Vilgax later in an attempt to leave both in the Null Void and use the Omnitrix to take over the world, only for Ben to escape and leave him and Vilgax trapped instead.
Ben 10: Alien Force
Kevin returns in Ben 10: Alien Force as an ally of Ben and Gwen Tennyson. Kevin's powers operate differently from the way they did in the original series. He has a normal human form, seemingly lost the powers of Ben's Omnitrix aliens, and his absorbing abilities now allow him to absorb the properties of matter as opposed to draining energy, allowing Kevin to cover himself and others with a layer of any solid substance he is touching (similar to Marvel's Absorbing Man) which also grants him some level of superhuman strength (Dwayne McDuffie has mentioned that Kevin can still absorb energy, but "He's afraid to". This may be because of what happened when he absorbed Ben's Omnitrix Aliens). He has a green hi-tech sports car which he takes care of obsessively. In his spare time, he installed various alien technologies in the vehicle, which proved useful in the final Highbreed war where he was forced to sacrifice it. Through the years, Kevin has gained a considerable amount of knowledge about aliens, possibly through his brokering of alien technology to various aliens and the Forever Knights and probably due to the fact that he is the son of a Plumber as well. He also seems to know a lot about humans with an alien heritage, as his guess about Gwen's powers being of alien origin was proven correct. As revealed in the episode "The Gauntlet", Kevin, as mentioned by JT, is now reputed as "the toughest kid in town", indicating that he has taken up residence in Bellwood although this has never been explicitly stated, nor is it mentioned how he could've escaped the Null Void or how he returned from his mutant form, however, it is possible that as his powers matured, he gained the ability to return to his human form. It is worth noting that when Ben first defeated Kevin, he offered Kevin to join their group; a similar thing happened at the begining of Alien Force, when Ben defeated Kevin as Swampfire and he was once again offered to join them, this time he took it.
In "Darkstar Rising", he reveals that his father was also a Plumber. He never met his father, but his mother told Kevin stories about what his father did. This is a big gap in the original series because in Ben 10, he said that his parents both left him because of his strange electrical powers but it may have only been an exaggeration on his part, since it is slightly hinted that Kevin's mother remarried, due to him saying, "My father, my real father". It's is also possible that he had somehow ended up it foster care, and that it was these parents that left him. At the end of the same episode, Kevin, along with Gwen and Ben become official Plumbers, after which, Kevin leaves to tell his mother about his membership, this suggests that he has now reconciled and rejoined with his family. In Darkstar Rising, when explaining that he wanted to be a Plumber for the sake of being just like his father, it "mostly" served as the reason that he joined the Tennysons in the first place.In the season 3 premeire "Vengence of Vilgax", Kevin is subjected to feedback from the Omnitrix after Ben tampers with it. Because of this, he is unable to revert back to his normal human form.In Alien Swarm the Live-Action movie, Kevin is seen driving around with his car. The car is a green 2009 Dodge Challenger. In "Single-Handed", he find's Ben's hand extremely funny.
Kevin's abilities have somewhat changed through out the course of the series. Generally, his power revolves around absorption. In Ben 10, Kevin can absorb energy and manipulate machinery to a minor extent though the energy he uses is finite, so is required to steal more. By absorbing energy from the Omnitrix, Kevin can temporarily take on attributes of any alien form Ben has currently taken on.
In "Framed", it is revealed that Kevin is able to assume any of Ben's alien hero forms at will, due to having absorbed enough sufficient energy from the Omnitrix. Despite this advantage over Ben, he is still defeated. The rage causes his absorption power to spiral out of control, mutating him into a hulking behemoth fusion compromised of the ten starter Omnitrix aliens with no way to revert back to human form. He remains in this form for the remainder of Ben 10. According to the enhanced version of "Framed" Kevin's human DNA restores through time. So, after 5 years he will become a human again.
In Ben 10: Alien Force (5 years after the Ben 10 series), Kevin returns in human form with his absorption powers intact. However now, he is able to absorb the properties of material into his own being such as metal or rock, transmuting himself a living form of whatever material he has absorbed and use it to increase his physical strength. It is revealed in the episode All That Glitters that the transmutation actually serves as a second skin/coating that eventually peels away as he takes damage. In the episode Plumbers' Helpers, Kevin can absorb multiple materials at once, as demonstrated by absorbing both nickel, copper and zinc (from loose change in his pocket). Dwayne McDuffie stated that Kevin can, in fact, still absorb energy, but is "afraid to", a plausible reason, considering his previous mutation. He requires a decent amount of material to completely encase himself. This abiltiy has once been used productively when Kevin was forced to synthise a coating of precious material, with the coating thickening after multiple absorbions to the point where Kevin couldn't move.
In the Alien Force season 3 premiere, Kevin loses the ability to revert to his human form after a feedback blast, caused when Ben tampers with the Omnitrix, imprints various materials onto him, such as concrete, metal, wood,;what appears to be Diamondhead crystals. in addition, Kevin gains limited shapeshifting abilites, seen when he shifts his hands into a variety different tools, such as a mace and large clippers. It is unknown if this is a permanent conditions, or simply temporary.
- According to the Pop-up version of the original Ben 10 series episode, "Perfect Day", it is revealed that Gwen Tennyson had feelings of sympathy for Kevin. This then grows into love in Ben 10: Alien Force.
- In the Ben 10: Alien Force season 2 finale War of the Worlds, Part 1, it is revealed that Kevin's middle name is Ethan, making his full name Kevin E. Levin, officially connecting the pun to his old nickname "Kevin Eleven". Ben finds this extremely hilarious, saying that he has lost "all remaining pretense of 'cool".
- He may be part alien because he said that his dad was a plumber. Even though his parents supposedly abandoned him (this may be a lie Kevin invented to impress Ben, because he doesn't answer to anybody), Kevin still has a mom who has most likely remarried, because on the end of Darkstar Rising, Kevin tells Ben and Gwen that he will tell his mom about his new plumbers badge.
- Gwen hardly said two words to Kevin in Ben 10, but they interact in almost every Alien Force episode. Throughout the Alien Force series, Kevin has developed romantic feelings for Gwen, which has more than once been evidenced, although he is very reluctant to openly admit them which could be due to the fact that he is very self-conscious and concerned that it will never work out between them for obvious (if not too obvious) reasons, his checkered past, his lifestyle, as well as just being the pretty much opposite of her. However, in "War of the Worlds", Kevin demonstrates just how much he really cares about Gwen after she transformed into her Anodite form, by reaching out to her by saying that he doesn't want her to forget him or Ben and that he doesn't want to lose her, they embrace each other afterwards. At the end of the show Kevin also takes Gwen to the auto show.
- Although seldom emphasized in the series, Kevin has a slight similarity to Max Tennyson, having first been pointed out by Verdona in the episode "What Are Little Girls Made Of?", this is supported by their similar personality traits, stubborn, adventurous and straightforward. Kevin has also worn Max's old tuxedo in "Save the Last Dance", possesses extensive knowledge about aliens rivaling that of the latter, as well as having a potential romance with Gwen, who is also of the Anodite heritage, reflecting Max and Verdona's past relationship.
- Kevin's mutated form in the season 3 debut bears a striking resemblance to DC Comics Metamorpho and even possesses similar powers.
- Kevin has been unable to transform back to his human form twice now. Both times were from tampering with the Omnitrix.