Maxwell Simkins

as Carter (23 episodes)

as Paulie

as Little Boo (voice) (58 episodes)

as Nick Ganz (20 episodes)

as Kevin

as Hunter Richardson (1 episode)

as Dr. Drakken (5 episodes)

as Young Drakken

as Max (1 episode)

as Tommy

as Cole

as Zane (21 episodes)

as Bo Cooper

as Caleb

as Self (1 episode)