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Gwendolyn Tennyson is Ben 10,000 and Kai Green's daughter and Ken's sister.[note 1]


Gwendolyn bears a striking resemblance to her mother at her age. She has a tanned complexion, long, black hair, brown eyes, and a slender figure. She styles her hair in a ponytail. Her outfit is a blue colored dress with white stripes on its center.


In Ken 10, Gwendolyn was seen at Ken's 10th birthday party along with Ken's friends.




  1. The fact that Gwendolyn is Ben's daughter was revealed only through a pop-up and Dwayne McDuffie's confirmation. In the show, she had a non-speaking role and did not interact with any of the main characters.
    • This was also the reason that she was not included in Omniverse: the creative team, which had studied the original series episodes, were not aware that she was Ben's daughter.[DJW 1]


Dwayne McDuffie

  1. link unavailable

Derrick J. Wyatt

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