|Species||1/4 Anodite 3/4 Human|
|Occupations||Hero, Student, Ice Skater|
|Powers and Abilities|
Doofus, Dweeb, Megadweeb (Ben)
Mrs. KnowAllThat (Ben)
Gwwen (Sandra & Carl)
|Voice Actor||Ashley Johnson|
Gwen Tennyson is a hero in Ben 10 Umut298. She first appeared in The Alien Device. She is a human-Anodite hybrid from the planet Earth.
Gwen is smart and acts like she is the smartest. She is the brains of Ben's team.
Powers and Abilities
She can shoot mana slices. Also, she is smart.
She can be angered with ease and she is really neat, making herself go through some situations, like Ben's cold.
- Ben: Ben and Gwen argue and battle a lot, but sometimes they are on the same side. Also, they both help each other out in hard times and would not let the other get hurt.
- Max: Look at Ben's relationship with Max. Gwen and Ben both share the same relationship with Max.
- Sandra, Carl, Natalie and Frank: Same as Max.
- Ice Skater Group: Gwen is an ice skater group.
- Kevin: Gwen will be in love with Kevin in Alien Force, Ultimate Alien and Omniverse.
- Gwen's favorite flowers are yellow roses.
- Gwen's birthday is in December.
- She also has the same birthday as Ben
- Gwen has Arachnophobia.
- Gwen isn't too fond of Upchuck's powers. It is also shown on several occasions that she isn't fond of Stinkfly.
- Gwen has much more control over her mana powers than shown.
- She dislikes being called an "energy being".
- Her powers seem to get stronger over time.