This page lists all the major characters that appeared in The Thundermans. For a list of minor characters, visit here. For a list of unnamed characters, visit here.
Barbara "Barb" Thunderman is a main character on The Thundermans. She is a retired superhero from Metroburg formerly known by her superhero name, "Electress."
Dr. Colosso is a regular character on The Thundermans. He is a former supervillain turned into a pet bunny by "Thunder Man". He lives with the Thundermans as Max's sarcastic pet bunny.
Dr. Colosso is voiced and portrayed by Dana Snyder.
Evelyn, a.k.a. President Kickbutt, is the president of the Hero League. She alerts the Thundermans of any supervillians in the area and also presents superheroes their cape among running other duties of the Hero League. Kickbutt first appeared in Haunted Thundermans and last appeared in The Thunder Games.
President Kickbutt is portrayed by Daniele Gaither and appeared in seasons 2, 3 and 4.
Cousin Blobbin is a superhero and a cousin to the Thunder Kids. He was the sidekick to the All American Blob (Uncle Wilfred), until he died and left Blobbin his vast fortune. Blobbin first appeared in Weekend Guest and last appeared in Z's All That.
Cousin Blobbin is portrayed by Harvey Guillen and appeared in seasons 1, 2, 3 and 4.
Mike Evilman was Hank's archenemy and the only villain that he could not beat. Mike Evilman first appeared in Meet the Evilmans and last appeared in Evil Never Sleeps.
Mike Evilman is portrayed by Eric Allen Kramer and appeared in seasons 2 and 3.
Dark Mayhem is a famous villain who Max idolizes to be like when he was aspirating to be a supervillain. Dark Mayhem first appeared in Phoebe vs. Max: The Sequel and last appeared in Thunder in Paradise.
Dark Mayhem is voiced by Jamieson Price but portrayed by Omid Zader and appeared in seasons 3 and 4.
Darcy Wong is Mrs. Wong's niece whose best friend used to live in the house currently occupied by the Thundermans, thus she wants to get revenge on the Thundermans. Darcy first appeared in Crime After Crime and last appeared in Pretty Little Choirs.
Darcy Wong is portrayed by Haley Tju. Darcy appeared in season 1 only.