Bill Murray
Vincent MacKenna
Melissa McCarthy
Maggie Bronstein
Jaeden Martell
Oliver Bronstein
Chris O'Dowd
Brother Geraghty
Lenny Venito
Coach Mitchell
Dario Barosso
Robert Ocinski
Maria Elena Ramirez
Amelda
Ron McLarty
Principal O'Brien
Gabe Hernandez
Latin Mover
Elliot Santiago
Latin Driver
Melanie Nicholls-King
Hospital Supervisor
Maria-Christina Oliveras
Medical Receptionist
James Andrew O'Connor
Antwan, Zucko's Partner
Brian Berrebbi
Process Server
Brenda Wehle
Judge Reynolds
Frank Wood
Maggie's Attorney
Orlagh Cassidy
Speech Therapist
Joann Lamneck
Belmont Bartender
Kerry Flanagan
CT Scan Nurse
Katharina Damm
Starlet, the Dancer
Jeff Bowser
Physical Therapist
Amber Clayton
Amber, the Waitress
Fred Evanko
David's Attorney
Ron Bush
Buy Buy Baby Salesman
Tim Wilson
Priest at Assembly
Tim Durkin
Belmont Race Caller (voice)
Richard Ford
Nature Program Narrator (voice)
Addison Rose Melfi
Girl in Class
Josh Elliott Pickel
Student (uncredited)
Alyssa Ruland
Student (uncredited)