Isla Fisher Maggie (voice)
Dennis Quaid Birdwatcher
Jamie Foxx Bug (voice)
Greta Lee Bella (voice)
Will Forte Doug
Josh Gad Gus (voice)
Will Ferrell Reggie (voice)
Brett Gelman Willy
Sofía Vergara Dolores the Couch (voice)
Harvey Guillén Shitstain (voice)
Randall Park Hunter (voice)
Jimmy Tatro Finn the Rottweiler (voice)
Rob Riggle Rolf (voice)
Louis Leterrier Producer
Phil Lord Producer
Jamie Demetriou Chester (voice)
David Herman Underbite Pound Dog (voice)
Keith Brooks Steve
Phil Morris Bubsy (voice)
Christopher Miller Producer
Hannah Alline Emma’s Mom
Dan Perrault Producer, Dr. Hagen, Writer
Tim Orr Director of Photography
Randy Torres Sound Effects Editor
Jon Title Sound Designer
Erik Feig Producer
Gabriella Garcia Teen Girl
Christopher S. Aud Sound Re-Recording Mixer, Sound Supervisor
Kevin Waterman Stunt Double
Beau Borders Sound Re-Recording Mixer
Aven Lotz Emma
Stephanie Dunnam Woman Gardening
Alonzo Ward Old Man in Park
Josh Greenbaum Director
Jade Fernandez Doug's Girlfriend
Sabrina Plisco Editor
Garrett Hines Emma’s Dad
Greg Hayden Editor
Erin Cochran Art Direction
Andrea Laing Jenna's Friend
Laurence Chavez Stunt Coordinator
Julia Hammer Executive Producer
Charity Cervantes Jenna
Mike Horton Foley Artist
Dara Taylor Original Music Composer, Vocals
Lisa Rodgers Post Production Supervisor
Aditya Sood Producer
Deadra Moore Old Woman in Park
Karri Farris Makeup Department Head
Hedy Nasser Carly
Nancy Nugent Title Supervising Sound Editor
Tinashe Kajese Cathy (uncredited)
Meagan Lewis Casting
Aaron Osborne Production Design
Dexter Masland James
Stephen E. Hagen First Assistant Director
Jaquita Ta'le Afghan Hound (voice)
Alexandra Ficken Jenna's Friend
Jack De Sanz Munchkin (voice)
Nikki Baida Executive Producer
Kurt Hockenberry Stunt Driver
Leila Nicotera Visual Effects Producer
Ryan Dinning Mailman
Taylor Towery Stunts
Jessica Switch Executive Producer
Mike Dolphy Riley's Dad
Jay Meagher Sound Mixer
Daniel DiPrima Music Editor
Micah Kaneshiro Storyboard Artist
Nancy St. John Visual Effects Producer
Britain Illingworth-Cramer Set Designer
J.J. George Music Editor