Jim Belushi

as Mr. Cross (voice)

Armie Hammer

as Strong Arm (voice)

Christian Slater

as Lazer Lord (voice)

Mayim Bialik

as Lady Lightning (voice)

Teri Hatcher

as Silver Skylark (voice)

Stan Lee

as Stan Lee (voice)

Flea

as Roller Man (voice)

Darren Criss

as Micro (voice)

Sean Astin

as Kid Kinergy (voice)

Michael Ironside

as Xanar (voice)