John Tossel

Howard

Jesse (1 episode)

Nate (1 episode)

Caleb Cottrell

James Levay (1 episode)

Fagan Kai

Joe

Kyle Rogers (1 episode)

Mordred (voice) (1 episode)

Fermat

Howie (1 episode)

Eric (1 episode)

Johnny Rocket (1 episode)

Mordred / J'onn's Children (voice) (1 episode)

Mordred (voice) (1 episode)

Rob Austin

10-Year-Old Boy (uncredited)

Justin (1 episode)

Jersey (1 episode)

Jordan (1 episode)

Boy (1 episode)

Hostage Boy (2 episodes)

Birthday Boy (1 episode)

Timmy (1 episode)