Trailer
Images
 | Pete Davidson as Marmaduke (voice) |
 | J.K. Simmons as Zeus (voice) |
 | David Koechner as Phil Winslow (voice) |
 | Mary Hart as EntertainMutt Tonight Host (voice) |
 | Julie Nathanson as Dottie Winslow (voice) |
 | Terri Douglas as Billy Winslow (voice) |
 | Erin Fitzgerald as Barbara Winslow (voice) |
 | Stephen Stanton as King Tut (voice) |
 | Brian Hull as Guy Hilton (voice) |
 | Sumalee Montano as Amy (voice) |
 | Andrew Morgado as Henri / Phillipe (voice) |
 | Chris Hackney as Announcer (voice) |
 | Shelby Young as Shantrelle (voice) |
 | Johnny Yong Bosch as Zhi (voice) |
 | Nika Futterman as Juan Pedro (voice) |
 | Melissa Disney as Javier (voice) |
 | Fred Tatasciore as Vinnie (voice) |
 | Jason Anthony as Ronnie (voice) |
 | Vanessa Marshall as Phone Girl (voice) |
| Nickie Bryar as Derek (voice) |
 | Joey Camen as Bee (voice) |
 | Rene Mujica as Clown (voice) |
 | Sean Rohani as Butcher (voice) |
 | Joey D'Auria as Shar Pei (voice) |
 | Cellin Gluck as Male Judge (voice) |
 | Tania Gunadi as Cheerleader #1 (voice) |
| Rachelle Heger as Cheerleader #2 (voice) |
 | Jason Pace as Capt. Jake S. Dean (voice) |
| Sarah Jean Pace as Chloe Laureno (voice) |
| Sabra May as Additional Voices (voice) |
 | Rebecca Davis as Additional Voices (voice) |
 | Brian T. Delaney as Additional Voices (voice) |
 | Dave Fennoy as Additional Voices (voice) |
 | André Sogliuzzo as Additional Voices (voice) |
| Directing | |
| Youngki Lee | Co-Director |
| Phil Nibbelink | Co-Director |
Sound | |
| Matthew Barr | Sound Effects Editor |
Production | |
| Brendan McNeill | Associate Producer |
| Fred Nelson | Executive Producer |
| Matt Sheppo | Executive Producer |
| Simon Crowe | Executive Producer |
| Matthew Joynes | Executive Producer |
| Vanessa Choy | Co-Executive Producer |
| Mary Vernieu | Casting |
| Raylin Sabo | Casting |
| Jonghan Kim | Producer |
| Mark A.Z. Dippé | Producer |
Sound | |
| Kenneth Burgomaster | Original Music Composer |
Directing | |
| Mark A.Z. Dippé | Director |
| Matt Philip Whelan | Co-Director |
Production | |
| Dan Chuba | Producer |
| Bridget McMeel | Producer |
| Timothy Wayne Peternel | Producer |
Editing | |
| Michael Rafferty | Editor |
Writing | |
| Byron Kavanagh | Writer |
Production | |
| Youngki Lee | Producer |
Editing | |
| Hayley Wang | Assistant Editor |
Writing | |
| Brad Anderson | Characters |
Production | |
| Louis Koo | Executive Producer |
Sound | |
| Nicholas Schnier | Music |
