Grandpa Max Tennyson

 

Maxwell "Max" Tennyson
is the sixty-year old (sixty-five in Ben 10: Alien Force, sixty-six in Ben 10: Ultimate Alien), rather overweight and a bit slow at times, paternal grandfather of the cousins Ben and Gwen Tennyson. Despite his age, Max has shown on multiple occasions to be highly athletic and a formidable fighter. He takes his grandson gaining superpowers and super-abilities in stride and supports Ben in any way he can. Max was once in the Army, had been in the astronaut program, and was a "plumber" and has been through his share of scrapes. Ben and Gwen were ignorant of this at first, believing him to have been a literal plumber. They began questioning this after several incidents in which he displayed knowledge and skills that a plumber would not normally have; everything from military-style hand signals^[4] to a working knowledge of nuclear reactors.^[9] Throughout the first season, it seems that Max knows far more about aliens than he lets on, which climaxes in the season finale, where it is revealed that he and Vilgax are old enemies, with Vilgax even going so far as to call Max "a thorn in his side".
In reality, Max was indeed a plumber, but not the kind that Ben and Gwen thought he was. He was part of an interstellar policing counter-terrorist/black-ops organization called "The Plumbers", which dealt with extraterrestrial, paranormal, and other situations that many others could not handle.^[10] Their base was beneath Mount Rushmore.^[11] The group was disbanded shortly after Max defeated Vilgax for the first time, suggesting that Vilgax had been largely responsible for the various incidents they dealt with.^[10] Max was to have been among the candidates eligible for the Apollo 11 mission, and would have gone were it not for other concerns.^[12]
Max is an old friend of an alien named Xylene. Xylene, like all the other three-eyed aliens of her planet, has the powers and abilities of flight, telepathy, and telekinesis. She had intended to send the Omnitrix to Max, but Ben found it by accident.^[13] Max and Xylene seem to have been romantically involved and work well as a team. Xylene tries to convince Max to form a partnership and travel across the galaxy with her, but Max eventually turns her down twice: the first time due to his duties as a Plumber, and the second time due to his need to look after the kids.
He also had a romantic relationship with an Anodite alien named Verdona. They ended up having two sons, Carl Tennyson, Ben's father, and Frank Tennyson, Gwen and Ken's father. However it seems that their relationship had apparently ended as Verdona left Earth to return to her home planet, Anodyne. She was assumed dead by her husband in "Ben 10: Race Against Time".
In Ben 10: Alien Force, Max plays a part in exposing the Highbreed conspiracy, and once the conflict is over, trains a new group of young Plumbers, at the same time informing Ben and the team of any alien threats.
In Ben 10: Ultimate Alien, at age sixty-six,Max continues to watch for alien attacks. During an encounter with Aggregor in "Map of Infinity", his nervous system is badly damaged. Azmuth has him placed in a Galvan medical tank in order to replace the damaged parts, an operation that is stated to take some time. However, he returns in the two-part season one finale "Absolute Power", his nervous system having been fully restored, and assists his two grandchildren in battling the villainous, Ultimate Kevin.

Kevin Levin

Kevin Ethan Levin
Kevin, is a seventeen year old (eleven in Ben 10, sixteen in Ben 10: Alien Force, seventeen in Ben 10: Ultimate Alien-present) Osmosian (a play on osmosis, meaning gradual absorption) /Human half-breed with the power and ability to asborb whatever matter he touches to form a layer of this matter on his body to protect himself and give him super-strength. His Osmosian blood was inherited from his father, who was a Plumber and one of Max's partners. Unfortunately, Kevin's father was killed in a mission by a vicious alien criminal called Ragnarok which started a downward spiral for him. Kevin became a series villain during the first show from absorbing energy, the very action taboo as it warps an Osmosian's mind as a result. He befriends Ben in their first encounter in order to use the Omnitrix's power to take out his anger on everyone who treated him like a monster because of his abilities. However, absorbing too much of the Omnitrix energy causes Kevin to turn into a chimeric hybrid of the alien forms and swears revenge on Ben for it. Eventually, Kevin ends up at the Null Void where he manages to regain his human form and fully master his abilities under the guidance of an inmate. He eventually manages to escape and became involved with the intergalactic black market. However, his involvement during the Highbreed invasion causes him to team up with Ben and Gwen, leading him to live his dream of being a Plumber like his father, reconcile with Ben, and start a relationship with Gwen over time. Though able to start on a new leaf, Kevin still acted out of his own interests at time and has trouble forgiving others. During Vilgax's challenge to Ben, Kevin accidentally mutated into a being made up of various materials of rock and metal as a result of absorbing Omnitrix energy, gaining the power and ability to turn his limbs into makeshift weapons and stretch them. When the Omnitrix is destroyed, Kevin reverts back to normal, retaining his ability to shapeshift after copying matter, as well as gaining the ability to secrete a liquid form of whatever material he has absorbed or manipulate the material when he is touching it. During the events of Ultimate Alien, Kevin is forced to absorb the Ultimatrix's energy in order to stop Aggregor, sacrificing his noble righteousness and mental stability in the process, now more insane as a result and a monstrous combination of Ben's newer aliens. After absorbing the energies in Aggregor, Kevin goes on a revenge spree against anyone who wronged him. However, unlike when he was eleven, Kevin is more of an anti-villain rather than a true villain, and has shown that he still retains some of his heart and humanity despite going insane after absorbing the Ultimatrix's energy. This is best seen in "The Enemy of my Enemy", when he spared Gwen's life instead of killing her, saying: "The only reason you're alive is because of what you used to mean to me." In the two-part episode "Absolute Power", Kevin had absorbed the powers of Alan Albright, Manny, Helen, Pierce, and Doctor Viktor. Gwen tries to reason with him which occasionally failed. Even the reasoning from Grandpa Max and Kevin's stepfather didn't go through. In a last stand in Los Soledad, Ben as Ultimate Echo Echo managed to bring him down and have the powers drained from him, thus reversing his mutation and restoring his sanity

 

BEN 10 CHARACTERS

Ben Tennyson

Benjamin Kirby Tennyson

also known as "Ben 10," is the main protagonist of the series. When he is 10 years old (15 in Ben 10 Alien Force, 16 in Ultimate Alien), he finds a powerful watch-like alien device, the Omnitrix, which fastens onto his wrist and gives him the incredible power and ability to transform into ten (later more) super-powered aliens. Unable to remove or destroy it, he uses his new powers and abilities to become a superhero, dealing with both aliens and earth threats, while trying to escape the alien warlord Vilgax, who pursue him relentlessly in order to retrieve the Omnitrix.

Ben is an immature, sometimes self-centered boy. He tempers his immaturity in the five-year sequel "Ben 10: Alien Force" due to Grandpa Max's disappearance and the threat of the Highbreed Invasion, but tends to relax and (somewhat) turn back to his original self in the third season. He also had a complex love-hate relationship with his ten-year-old cousin Gwen in the original show. And since he was a kid, he always loved the "Sumo Slammers".
Despite his immaturity, Ben's actions are motivated above all by a strong and sincere will to help other people; he'll stop at nothing to protect his family or anyone in danger. Sometimes, his idealistic nature tends to make him act naive.
Though often thought by many other characters to be quite unintelligent, Ben actually proves to be resourceful and cunning when needed, even utilizing martial arts taught by Gwen; this saves him in many situations, especially when the Omnitrix can't activate or doesn't provide him with the form he originally wanted.

Gwen Tennyson

Gwendolyn Tennyson

Ben's ten-year old cousin (fifteen in Alien Force, and sixteen in Ultimate Alien [the two share the same birthday]).^[2]
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.^[3] She uses her laptop to research any strange people and/or creatures they might come across,^[4] is a capable gymnast, and has had some training in martial arts.^[5] 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.
Overall, her most notable skill is her innate, if latent, power and ability at magic. Having within her what Charmcaster calls a magical aura (which is bright blue in the original series and shades of pink, magenta, fuchsia and varying shades of purple in Ben 10: Alien Force and Ben 10: Ultimate Alien), Gwen is capable of using various magical artifacts, charms, talismans, spell books and spells.^[6] When using the mystical and magical luck-giving Charm of Bezel, she was able to activate it instinctively, whereas Hex did or could not.^[7] Later on, when she takes and uses his staff, she was able to make it fire a light yellow-colored energy blast. According to Charmcaster, only someone of Hex's skill should have that power and ability.^[8]On two occasions, Gwen has the Charms of Bezel to become a superhero by the name of Lucky Girl. At first, her power and ability drew from the luck-granting Charm of Bezel, which innately gave her complete perfect luck. While wearing the charm, any action she took would result in a chain reaction benefiting her original intent, but usually injuring Ben in the process.^[7] She later brought back her superhero identity after obtaining the Keystone of Bezel, which greatly increased and strengthened her natural abilities to superhuman levels rather than just affecting her luck.^[8] Both times, Gwen was forced to retire when the Charms of Bezel were destroyed. However, in a twenty-year alternate future, thirty-year-old Gwen goes to the mystical interdimensional realm of Bezel to receive a new set of charms. For an unknown reason she does not have the Keystone of Bezel in her possession.
In Ben 10: Alien Force, her magical powers and abilities have greatly strengthened and increased to even higher power levels, and she is easily able to control and manipulate pure pink glowing energy from her magical aura to create energy blasts, shields, barriers, and other structures, like hammers, protective helmets, battering rams, beams to grab and hurl enemies, stepping stones to carry herself and others through the air, and safety nets. It is also revealed that her paternal grandmother Verdona was an energy being known as an Anodite from the distant planet Anodyne, a free-spirited alien species who possess the exceedingly strong and powerful power and ability to manipulate and control a supernatural force-like substance called life energy most commonly known as mana (which can also be referred to either chakra or chi), the very source of magic itself, which explained Gwen's unusual affinity with magic. Gwen is also able to take on an Anodite energy form like her grandmother if she is under a great deal of stress.