A list of characters that appear in the show Ben 10: Eternal Forms.
Main Protagonists[]
Ben Tennyson[]
One of the three main protagonists of the show. He is the wielder of the Ultimatrix, one of the most powerful devices in the universe that allows him to transform into any number of different alien species. Due to some complications, his human form was corrupted, so now he is only able to access his alien forms.
Gwen Tennyson[]
One of the three main protagonists of the show, the cousin of Ben. She is part Anodite due to her alien heritage, and is able to manipulate life force known as mana. She recently transformed into her full Anodite form permanently.
Kevin Levin[]
One of the three main protagonists of the show. He is part Osmosian, able to absorb energy, matter, and alien powers. He is mutated into a form that is a combination of almost all of Ben's aliens, although he is no longer insane.
Secondary Protagonists[]
Cash Murray[]
Cash is a school bully at Bellwood High. He appears in the episode Nuclear Dropout, where he and his friend JT try to help Ben, Gwen and Kevin find a nuclear bomb in the school.
J.T.[]
A friend of Cash Murray, who also goes to Bellwood High. He also appeared in the episode Nuclear Dropout.
Villains[]
Insane Anodite Gwen[]
During Absolute Prison (Part 1) and Absolute Prison (Part 2), Gwen is in her Anodite form but unable to control herself. This makes herself a danger to her friends as well as the entire planet.
Forever King Roland[]
A Forever King that appeared at the end of Absolute Prison (Part 1). He is rumored to be the mastermind behind the largest faction of the Forever Knights in operation. His weapon of choice is a bow and arrow. His character was named after King Roland, a character in the Steven King novel "Eyes of the Dragon". He will killed by Gwen on her rampage of insanity.
Zombozo[]
Appeared in Absolute Prison (Part 2). An evil clown who absorbs people's laughter to feed himself. Gwen Tennyson harbors a particular hatred towards him, making him an obvious target on her rampage.
Racheal Carlston[]
A teenage girl and gang member who appeared in Nuclear Dropout. She attempted to plant an alien tech nuclear bomb in Bellwood High, though her attempt was stopped by Cash and JT.
Will Harangue[]
A news reporter, and host of Will Harangue Nation. Absolutely hates Ben. In the episode Reception, he built three ninja robots and had them attack Ben, Gwen and Kevin.