Patton Oswalt

Max (voice)

Kevin Hart

Snowball (voice)

Eric Stonestreet

Duke (voice)

Jenny Slate

Gidget (voice)

Tiffany Haddish

Daisy (voice)

Lake Bell

Chloe (voice)

Nick Kroll

Sergei (voice)

Dana Carvey

Pops (voice)

Ellie Kemper

Katie (voice)

Harrison Ford

Rooster (voice)

Chris Renaud

Norman / Additional Voices (voice)

Bobby Moynihan

Mel (voice)

Hannibal Buress

Buddy (voice)

Pete Holmes

Chuck (voice)

Henry Lynch

Liam (voice)

Tara Strong

Additional Voices (voice)

Sean Giambrone

Cotton (voice)

Meredith Salenger

Cat Lady (voice)

Michael Beattie

Lead Wolfdog / Skinny Cat (voice)

Kiely Renaud

Molly (voice)

Jessica DiCicco

Princess / Tiny (voice)

Garth Jennings

Hamster (voice)

David Acord

Additional Voices (voice)

Jaime Camil

Additional Voices (voice)

Antonio Raul Garcia

Additional Voices (voice)

Brian T. Delaney

Additional Voices (voice)

Terri Douglas

Additional Voices (voice)

Sandra Echeverría

Additional Voices (voice)

Kylie Hart

Additional Voices (voice)

JP Karliak

Additional Voices (voice)

John Kassir

Additional Voices (voice)

Scott Menville

Additional Voices (voice)

Scott Mosier

Additional voices (voice)

Laraine Newman

Additional Voices (voice)

Capri Oliver

Additional Voices (voice)

Arthur Ortiz

Additional Voices (voice)

Lucian Perez

Additional Voices (voice)

Maddix Robinson

Additional Voices (voice)

Ashley Silverman

Additional Voices (voice)

Fred Tatasciore

Additional Voices (voice)

Cory Walls

Additional Voices (voice)

Matthew Wood

Additional Voices (voice)

Philippe Lacheau

(voice) (uncredited)

Julien Arruti

(voice) (uncredited)

Willy Rovelli

(voice) (uncredited)

Élodie Fontan

(voice) (uncredited)

Tarek Boudali

(voice) (uncredited)

Karine Le Marchand

(voice) (uncredited)

Dorothée Pousséo

(voice) (uncredited)

Alban Lenoir

(voice) (uncredited)

Romain Lancry

(voice) (uncredited)