Yuri Lowenthal

Ben Tennyson (voice)

Tara Strong

Young Ben Tennyson (voice)

Bumper Robinson

Rook Blonko (voice)

Paul Eiding

Grandpa Max (voice)

David Kaye

Cannonbolt / Heatblast / Khyber the Huntsman (voice)

John DiMaggio

Armodrillo / Fourarms (voice)

Eric Bauza

Dr. Psychobos / Diamondhead / Grey Matter (voice)

Ashley Johnson

Gwen Tennyson (voice),Young Gwen Tennyson (voice)

Greg Cipes

Kevin Levin (voice)

Dee Bradley Baker

Crashhopper / Stinkfly / Spidermonkey / Wildmutt (voice)