Philip Elertson (1 episode)

Director Elias

Cecil

Marvin (1 episode)

NIS Junior Chemist Philip Elertson (4 episodes)

Doctor

Mister Mailman

Lance (1 episode)

Person in Line

Dr. Seth Razack (3 episodes)

Aristotle (voice)

Location Coordinator

JPV (5 episodes)

Devon (1 episode)

Bouncing Boy (voice)

Kyle Braxton (10 episodes)

Goodman (voice) (2 episodes)

Nerdy Troll (voice) (1 episode)

Rufus (8 episodes)

Frank Lott (1 episode)

Bamm-Bamm Rubble (voice) (26 episodes)

Derk the Clerk (1 episode)

Gary

Flem (voice)

Roger (1 episode)

Young Boss (1 episode)

Noah Kuttler / Calculator (voice) (2 episodes)

Travis

Dougie (1 episode)

Elmo Moss

Mike Finger (3 episodes)

Danny (1 episode)

Brian (1 episode)

Reggie (6 episodes)

Devin (1 episode)

Garrett

Eustace (11 episodes)

Doobner Younger Son

Homeschooled Boy