John Belushi

John 'Bluto' Blutarski

Karen Allen

Katy

Tom Hulce

Larry 'Pinto' Kroger

Stephen Furst

Kent 'Flounder' Dorfman

Mark Metcalf

Doug Neidermeyer

Mary Louise Weller

Mandy Pepperidge

Martha Smith

Barbara Sue 'Babs' Jansen

John Vernon

Dean Vernon Wormer

James Daughton

Greg Marmalard

Kevin Bacon

Chip Diller

Tim Matheson

Eric 'Otter' Stratton

Verna Bloom

Marion Wormer

Cesare Danova

Mayor Carmine DePasto

Peter Riegert

Donald 'Boon' Schoenstein

James Widdoes

Robert Hoover

Bruce McGill

Daniel Simpson Day

DeWayne Jessie

Otis Day

Sarah Holcomb

Clorette DePasto

Donald Sutherland

Dave Jennings

Douglas Kenney

Stork

Sunny Johnson

Otter's Co-Ed

Eliza Roberts

Brunella

Stephen Bishop

Charming Guy with Guitar

John Landis

Cafeteria Dishwasher