John Belushi character John "Bluto" Blutarski
Tim Matheson character Eric "Otter" Stratton
John Vernon character Dean Vernon Wormer
Verna Bloom character Marion Wormer
Tom Hulce character Larry "Pinto" Kroger
Cesare Danova character Mayor Carmine DePasto
Peter Riegert character Donald "Boon" Schoenstein
Mary Louise Weller character Mandy Pepperidge
Stephen Furst character Kent "Flounder" Dorfman
James Widdoes character Robert Hoover
Bruce McGill character Daniel Simpson Day
Mark Metcalf character Doug Neidermeyer
DeWayne Jessie character Otis Day
Karen Allen character Katy
James Daughton character Greg Marmalard
Martha Smith character Barbara Sue "Babs" Jansen
Sarah Holcomb character Clorette DePasto
Lisa Baur character Shelly
Kevin Bacon character Chip Diller
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
