Reggie (voice)

Will Ferrell

Dolores the Couch (voice)

Sofía Vergara

Bug

Jamie Foxx

Maggie

Isla Fisher

Hunter

Randall Park

Doug

Will Forte

Chester (voice)

Jamie Demetriou

Carly

Hedy Nasser

Willy

Brett Gelman

Emma's Mom

Hannah Alline

Rolf (voice)

Rob Riggle

Gus

Josh Gad

Doug's Girlfriend

Jade Fernandez

Cathy (uncredited)

Tinashe Kajese

Jenna's Other Friend

Alexandra Ficken

Shitstain

Harvey Guillen

Emma's Dad

Garrett Hines

Bella (voice)

Greta Lee

Jenna

Charity Cervantes

Finn the Rottweiler (voice)

Jimmy Tatro

Jenna's Friend

Andrea Laing

Emma

Aven Lotz

Munchkin (voice)

Jack De Sanz

Steve

Keith Brooks

Bubsy (voice)

Phil Morris

James

Dexter Masland

Underbite Pound Dog (voice)

David Herman

Afghan Hound (voice)

Jaquita Ta'le

Riley

Mikayla Rousseau

Riley's Dad

Mike Dolphy

Dr. Hagen

Dan Perrault

Birdwatcher

Dennis Quaid

Teen Girl

Gabriella Garcia

Teenage Boy

Andrew Nicolas Starr

Mailman

Ryan Dinning

Woman Gardening

Stephanie Dunnam

Old Woman in Park

Deadra Moore

Old Man in Park

Alonzo Ward

Liam

AJ Bernard