Adam Lambert
Emperor Maximus (voice)
Kenan Thompson
Bloodbones (voice)
Meghan Trainor
Fairy Godmother (voice)
Daniel Radcliffe
Rex Dasher (voice)
Paloma Rodríguez
Valera (voice)
Maddie Taylor
Glinara (voice)
Lino DiSalvo
Robotitron (voice)
Ryan S. Hill
6-Year-Old Charlie
Mariah Inger
Police Officer 1
Annakin Slayd
Police Officer 2
Harry Strandjofski
Security Guard
Dino Andrade
Scurvy Pete (voice)
Ian James Corlett
Dogsled Driver (voice)
Dan Navarro
Viking Leader (voice)
Tito Ortiz
Royal Guard (voice)
Andrew Pifko
S.K.U.L.L. Scientist (voice)
Cindy Robinson
Nola (voice)
Keith Silverstein
Liam Brooks (voice)
Christopher Corey Smith
Western Outlaw (voice)
Spike Spencer
Various Voices (voice)
Karen Strassman
Dr. Greta Grim (voice)
Kirk Thornton
Ook-Ook (voice)