Louis C.K.
Max (voice)

Eric Stonestreet
Duke (voice)

Kevin Hart
Snowball (voice)

Jenny Slate
Gidget (voice)

Ellie Kemper
Katie (voice)

Albert Brooks
Tiberius (voice)

Lake Bell
Chloe (voice)

Dana Carvey
Pops (voice)

Hannibal Buress
Buddy (voice)

Bobby Moynihan
Mel (voice)

Chris Renaud
Norman (voice)

Steve Coogan
Ozone / Reginald (voice)

Michael Beattie
Tattoo (voice)

Sandra Echeverría
Maria (voice)

Jaime Camil
Fernando (voice)

Tara Strong
Additional Voices (voice)

Jason Marsden
Additional Voices (voice)

Mona Marshall
Additional Voices (voice)

Brian T. Delaney
Additional Voices (voice)

Bill Farmer
Additional Voices (voice)

Jan Rabson
Additional Voices (voice)

Ken Schretzmann
Additional Voices (voice)

John Kassir
Additional Voices (voice)

Danny Mann
Additional Voices (voice)

Jim Ward
Additional Voices (voice)

Bob Bergen
Additional Voices (voice)

Jim Cummings
Additional Voices (voice)

Jess Harnell
Additional Voices (voice)

Laraine Newman
Additional Voices (voice)

Dee Bradley Baker
Additional Voices (voice)