Sean Penn
Terence (voice)
Geoffrey Arend
Day Care Teacher (voice)
Bill Hader
Leonard (voice)
Peter Dinklage
Mighty Eagle (voice)
Alex Borstein
Sophie Bird / Peggy Bird (voice)
Tony Hale
Ross / Cyrus / Mime (voice)
Fergal Reilly
Foreman Pig (voice)
Maya Rudolph
Matilda (voice)
Judah Friedlander
Bill Beakins (voice)
Josh Gad
Chuck (voice)
Jason Sudeikis
Red (voice)
Fred Tatasciore
Monty Pig (voice)
Danny McBride
Bomb (voice)
Catherine Winder
Billy the Sign (voice)
Maddie Taylor
Hamilton Pig / Acrobat Pig (voice)
Ike Barinholtz
Tiny (voice)
Blake Shelton
Earl Pig (voice)
Keegan-Michael Key
Judge Peckinpah (voice)
Hannibal Buress
Edward the Birthday Dad (voice)
Max Charles
Bobby Bird (voice)
Ali Wong
Betty Bird (voice)
Billy Eichner
Chef Pig / Phillip (voice)
John Cohen
Johnny Bird (voice)
Kevin Bigley
Greg Blue (voice)
Danielle Brooks
Olive Blue / Monica the Crossing Guard (voice)
Matthew J. McCarthy
Rodney Pig / Acrobat Pig (voice)
Mckenna Grace
Ella Bird (voice)
Jillian Bell
Helen the Lunch Mom / Yoga Instructor (voice)
Kate McKinnon
Stella / Eva the Birthday Mom (voice)
Clay Kaytis
Clayton the Waiter Bird (voice)
Anthony Padilla
Hal (voice)
Ian Hecox
Bubbles (voice)
Ava Acres
Timothy the Birthday Bird (voice)
Cristela Alonzo
Shirley the Old Lady Bird (voice)
Tituss Burgess
Photog (voice)
Romeo Santos
Early Bird (voice)
Charli XCX
Willow (voice)
Aidan McGraw
Young Red (voice)
Josh Robert Thompson
Brad Bird / Dane the Saxophone Bird (voice)