Shohreh Aghdashloo
voices Grayson
Jason Spisak
voices Silco
Hailee Steinfeld
voices Vi
Molly Harris
voices Young Caitlyn
Remy Hii
voices Mr. Kiramman
Erica Lindbeck
voices Elora
Harry Lloyd
voices Viktor
Toks Olagundoye
voices Mel Medarda
Amirah Vann
voices Sevika
Katie Leung
voices Caitlyn
Dave B. Mitchell
voices Warden
Ella Purnell
voices Jinx
Kimberly Brooks
voices Sky
Mira Furlan
voices Babette
Sophia Jeffords
voices Renni