Billy Crystal

Mike

John Goodman

Sullivan

Steve Buscemi

Randy

Helen Mirren

Dean Hardscrabble

Peter Sohn

Squishy

Joel Murray

Don

Sean Hayes

Terri

David Foley

Terry

Charlie Day

Art

Alfred Molina

Professor Knight

Tyler Labine

Greek Council VP

Nathan Fillion

Johnny

Aubrey Plaza

Greek Council President

Bobby Moynihan

Chet

Noah Johnston

Young Mike

Julia Sweeney

Ms. Squibbles

Bonnie Hunt

Mrs. Graves

John Krasinski

Frank McCay