Marie Matiko

as Dark Princess / Punching Dolphin (voice)

James Sie

as Ninja (voice)

Jessica Glassberg

as Sylvie Glassberg (voice)

John Michael Higgins

as Ransom Transom / Sparks (voice)

Jeffrey Tambor

as Dr. Zed (voice)

James Arnold Taylor

as Announcer / Big Rubes / Zeke (voice)