Ashley Johnson
Tulip Olsen (voice)
Jeremy Crutchley
Glad-One (voice)
Kirby Howell-Baptiste
Grace (voice)
Kyle McCarley
Simon (voice)
Robbie Daymond
Jesse (voice)
Isabella Abiera
Hazel (voice)
Johnny Young
Min-Gi (voice)
Kate Mulgrew
The Cat (voice)
Ernie Hudson
Atticus (voice)
Ben Mendelsohn
Agent Mace (voice)
Dee Bradley Baker
Monster Atticus (voice)
Bradley Whitford
Agent Sieve (voice)
Diane Delano
Tuba (voice)
Rhys Darby
Randall / Balloon Randall (voice)
Keith Ferguson
Comedy Mask (voice)
Justin Michael
Friend (voice)
Audrey Wasilewski
Megan Olsen (voice)
Justin Felbinger
Nate (voice)
Reagan Gomez-Preston
Mikayla (voice)
Matthew Rhys
Alrick (voice)
Mark Fite
Andy Olsen (voice)
Lena Headey
The Conductor / Amelia (voice)
Jenna Davis
Lucy / Apex Child 3 / Apex Girl (voice)
Grey DeLisle
Lunch Lady / Tape Merchant / Seedy Merchant (voice)
Laraine Newman
Marietta Gillicutty / Maise Trundleshank (voice)
Kari Wahlgren
Sinesta Gillicutty / Bree Trundleshank / Girl Quadruplets (voice)
Rick Zieff
Ithmush Trundleshank / Nathaniel Trundleshank / Silas Trundleshank (voice)
Wayne Knight
Marcel (voice)
Scott Menville
Troy / Bully 1 (voice)
Bill Corbett
Perry the Parasite (voice)
BeBe Zahara Benet
Sashay (voice)
Naomi Hansen
5 Year Old Tulip (voice)
Lily Sanfelippo
6 Year Old Tulip / 8 Year Old Tulip (voice)
Ron Funches
Khaki Bottoms (voice)
Antonio Raul Garcia
Apex Child / Apex Child 2 (voice)
Alfred Molina
Chandelier (voice)
Jacob Farry
Apex Kid 2 (voice)
