Daryl Sabara

Rex Salazar (voice)

Yuri Lowenthal

Ben Tennyson/Upgrade (voice)

Wally Kurth

Agent Six (voice)

Grey DeLisle

Dr. Holiday (voice)

John DiMaggio

Bobo Haha/Rath (voice)

J.K. Simmons

White Knight (voice)

Michael Emerson

Alpha Nanite (voice)

Jennifer Hale

Black Knight (voice)

Freddy Rodríguez

Ceaser Salazar (voice)

Dee Bradley Baker

Humungosaur/Diamondhead/Lodestar/Big Chill/Upchuck (voice)

David Kaye

Shocksquatch (voice)