Characters played by Daryl Sabara
Rex
Characters played by Yuri Lowenthal
Ben Tennyson
Upgrade
Additional Voices
Characters played by Wally Kurth
Agent Six
Characters played by Grey Griffin
Dr. Holiday
Diane Farrah
additional voices
Characters played by John DiMaggio
Bobo Haha
Rath
additional voices
Characters played by J.K. Simmons
White Knight
Characters played by Michael Emerson
Nanite Alpha
Characters played by Jennifer Hale
Black Knight
Characters played by Freddy Rodríguez
Caesar
Characters played by Dee Bradley Baker
Humungosaur
Diamondhead
Lodestar
Big Chill
Cannonbolt
Four Arms
Shocksquatch
Upchuck
Additional voices
Characters played by David Kaye
Additional Voices