Yuri Lowenthal
voices Mylo
Jason Spisak
voices Silco
Hailee Steinfeld
voices Vi
Josh Keaton
voices Salo
Harry Lloyd
voices Viktor
Abigail Marlowe
voices Mrs. Kiramann
Dave B. Mitchell
voices Hoskel
Toks Olagundoye
voices Mel Medarda
Amirah Vann
voices Sevika
Mick Wingert
voices Heimerdinger
Mara Junot
voices Shoola
Katie Leung
voices Caitlyn
Ella Purnell
voices Jinx
Kimberly Brooks
voices Sky
Abigail Marlowe
voices Renni
Reed LoRenzo Shannon
voices Ekko