John Belushi

Character: John 'Bluto' Blutarski

Karen Allen

Character: Katy

Tom Hulce

Character: Larry 'Pinto' Kroger

Stephen Furst

Character: Kent 'Flounder' Dorfman

Mark Metcalf

Character: Doug Neidermeyer

Mary Louise Weller

Character: Mandy Pepperidge

Martha Smith

Character: Barbara Sue 'Babs' Jansen

John Vernon

Character: Dean Vernon Wormer

James Daughton

Character: Greg Marmalard

Kevin Bacon

Character: Chip Diller

Tim Matheson

Character: Eric 'Otter' Stratton

Verna Bloom

Character: Marion Wormer

Cesare Danova

Character: Mayor Carmine DePasto

Peter Riegert

Character: Donald 'Boon' Schoenstein

James Widdoes

Character: Robert Hoover

Bruce McGill

Character: Daniel Simpson Day

DeWayne Jessie

Character: Otis Day

Sarah Holcomb

Character: Clorette DePasto

Lisa Baur

Character: Shelly

Donald Sutherland

Character: Dave Jennings

Douglas Kenney

Character: Stork

Chris Miller

Character: Hardbar

Bruce Bonnheim

Character: B.B.

Joshua Daniel

Character: Mothball

Sunny Johnson

Character: Otter's Co-Ed

Stacy Grooman

Character: Sissy

Eliza Roberts

Character: Brunella

Aseneth Jurgenson

Character: Beth

Katherine Denning

Character: Noreen

Raymone Robinson

Character: Mean Dude

Robert Elliott

Character: Meaner Dude

Reginald Farmer

Character: Meanest Dude

Jebidiah R. Dumas

Character: Gigantic Dude

Priscilla Lauris

Character: Dean's Secretary

Rick Eby

Character: Omega

John Freeman

Character: Man On Street

Sean McCartin

Character: Lucky Boy

Helen Vick

Character: Sorority Girl

Rick Greenough

Character: Mongol

Stephen Bishop

Character: Charming Guy with Guitar

John Landis

Character: Cafeteria Dishwasher