Isla Fisher Sarah Hatoff (voice)
Ricky Gervais Flippy (voice)
Jana Schmieding Janet (voice)
Stephen Root Grampa (voice)
Pete Davidson Petey the Cat (voice)
Billy Boyd Seamus (voice)
Kate Micucci Dippy (voice)
Scott Menville 3D Guy (voice)
Laraine Newman Scientist (voice)
Lil Rel Howery Chief (voice)
Maggie Wheeler Nurse (voice)
Poppy Liu Butler (voice)
Kelly Stables Harold (voice)
Cam Clarke Indifferent Shop (voice)
Cheri Oteri Mayor (voice)
Gary A. Hecker Foley Supervisor
Luenell Milly (voice)
Melissa Villaseñor Realtor (voice)
Gary Rizzo Sound Re-Recording Mixer
John Eric Bentley Living Spray Factory (voice)
Kimberly Bailey Gym (voice)
Peter Hastings Writer, Dog Man / Officer Knight / Harold's House (voice), Director
Jeremy Bernstein Storyboard Artist
Rahnuma Panthaky Doctor (voice)
Christi Soper Hilt Casting
Dav Pilkey Book, Executive Producer
Warren Sroka Apartment Building (voice)
Max Koch Rocco (voice)
Tom Howe Original Music Composer
Nate Wragg Production Design
Shabrayia Cleaver Associate Producer
Brian Hopkins Big Jim (voice), Editor
Gaël Matchabelli Lead Animator
Yung Gravy Mr. Whiskers (voice), Songs
Georgia Simon Hospital (voice)
Mike Horton Foley Artist
Kevin McCann Grump (voice)
Adam Rosette Storyboard Artist
Carder Scholin Storyboard Artist
Skip Stellrecht Ice Cream Building (voice)
Jeff Gross Foley Mixer
Arran Jay Baker Lead Animator
Lucas Hopkins Calderon Li'l Petey (voice)
Pearce Bunting Cheesesteak Guy (voice)
Sarah Gold Amburgey Storyboard Artist
Percy Rustomji Surfer (voice)
Karen Foster Robot (voice), Producer
Daniel Tal Additional Storyboarding
Sonny Onorati Radio Building (voice)
Hanna Kim Storyboard Artist
Aziz Kocanaogullari Lead Animator
Scott Cullen Head of Layout
Tim Gibson Animation Supervisor
Cassandra Fanning Digital Supervisor
Valentin Beaumont Visual Effects Technical Director
Chris Heltzel Storyboard Artist
Emma Porter Lead Animator
Camryn Del Vecchio Additional Storyboarding
Anthony Zierhut Head of Story
Marceline Tanguay Storyboard Artist
Daria Khil Additional Storyboarding
Christopher Zibach Art Direction
Andrea Ferrara Lead Animator
Bianca Margiotta Associate Producer