Andy Samberg

Ham III (voice)

Cheryl Hines

Luna (voice)

Jeff Daniels

Zartog (voice)

Patrick Warburton

Titan (voice)

Kristin Chenoweth

Kilowatt (voice)

Kenan Thompson

Ringmaster (voice)

Zack Shada

Comet / Nava Boy (voice)

Carlos Alazraqui

Houston (voice)

Omid Abtahi

Dr. Jagu (voice)

Patrick Breen

Dr. Bob (voice)