Cast and credits of Casper & Nova

Madeleine Martin
Fionna Campbell / Pastry Fionna (voice)

Roz Ryan
Cake (voice)

Tom Kenny
Simon Petrikov / Pup Guard (voice)

Donald Glover
Marshall Lee / Monster Marshall (voice)

Andrew Rannells
Gary Prince / Monster Gary (voice)

Pendleton Ward
Lumpy Space Prince / Ellis P / Norm (voice)

Ron Perlman
The Lich (voice)

Victoria Ortiz
Hunter / Skater Y (voice)

Imani Hakim
Beth (voice)

Dee Bradley Baker
Pageling Dinosaur / Pageling Warrior / Dragon (voice)

Grey DeLisle
Ice Cream Queen / Rink Attendant (voice) (as Grey DeLisle)

Robbie Daymond
TV Announcer (voice)

Sean Giambrone
Shermy (voice)