cast
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Ashley Johnson
Tulip Olsen (voice) / Mirror Tulip "MT" (voice) / The Steward (voice) / Lake (voice) / Popcorn (voice) / Mom / Girl (voice) / Mirror Tulip (voice)
- Owen Dennis Sad-One (voice) / Cross-Eyed Duck / Talking Skeleton (voice) / Toad / Spells Wizard / Bear (voice) / Pencil People (voice) / TV Jingle (voice) / Frank (voice) / Toad / Bully 3 (voice) / Greige / Giant (voice)
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Jeremy Crutchley
Glad-One (voice) / Mask Monster (voice) / The Dean (voice)
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Kirby Howell-Baptiste
Grace (voice) / Voice 3 / Mail Lady (voice)
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Kyle McCarley
Simon (voice) / Voice 4 / Playbill / Spotlight / Tragedy Mask (voice)
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Robbie Daymond
Jesse (voice) / Fyodor / Apex Raider 2 (voice) / Richard Trundleshank (voice) / Bully 2 (voice)
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Isabella Abiera
Hazel (voice)
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Johnny Young
Min-Gi (voice)
- Sekai Murashige Ryan (voice)
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Kate Mulgrew
The Cat (voice)
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Ernie Hudson
Atticus (voice)
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Ben Mendelsohn
Agent Mace (voice)
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Dee Bradley Baker
Monster Atticus (voice) / Ghoms (voice)
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Bradley Whitford
Agent Sieve (voice)
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Diane Delano
Tuba (voice)
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Rhys Darby
Randall / Balloon Randall (voice)
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Keith Ferguson
Comedy Mask (voice) / Wilbur Gillicutty / Seth Trundleshank / Boy Quadruplets (voice) / Goblin / Tusk Creature / Announcer Tannuki (voice)
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Justin Michael
Friend (voice) / Kevin / Turtle Guard (voice) / Kevin / Soldier Turtle (voice)
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Audrey Wasilewski
Megan Olsen (voice)
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Justin Felbinger
Nate (voice)
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Reagan Gomez-Preston
Mikayla (voice) / Mikayla / Dolphin Handler / Ugly Irwin (voice)
- Lindsay Katai Little Badger Boy / Badger Mother (voice) / Nancy (voice)
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Matthew Rhys
Aloysius (voice) / Alrick (voice)
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Mark Fite
Andy Olsen / Harry The Bike Guy (voice) / Andy Olsen (voice)
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Lena Headey
Amelia / Teacher (voice) / The Conductor / Amelia (voice)
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Jenna Davis
Lucy / Apex Child 3 / Apex Girl (voice) / Lucy / Kevin Jr. / Lindsay (voice)
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Grey DeLisle
Lunch Lady / Tape Merchant / Seedy Merchant (voice)
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Laraine Newman
Marietta Gillicutty / Maise Trundleshank (voice)
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Kari Wahlgren
Sinesta Gillicutty / Bree Trundleshank / Girl Quadruplets (voice)
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Rick Zieff
Ithmush Trundleshank / Nathaniel Trundleshank / Silas Trundleshank (voice)
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Wayne Knight
Marcel (voice)
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Scott Menville
Troy / Bully 1 (voice)
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Bill Corbett
Perry the Parasite (voice)
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BeBe Zahara Benet
Sashay (voice)
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Naomi Hansen
5 Year Old Tulip (voice)
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Lily Sanfelippo
6 Year Old Tulip / 8 Year Old Tulip (voice)
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Ron Funches
Khaki Bottoms (voice)
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Antonio Raul Garcia
Apex Child / Apex Child 2 (voice)
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Alfred Molina
Chandelier (voice)
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Jacob Farry
Apex Kid 2 (voice)
