- John Belushi
- John "Bluto" Blutarsky
- Kevin Bacon
- Chip Diller
- Donald Sutherland
- Prof. Dave Jennings
- Karen Allen
- Katy
- Tim Matheson
- Eric "Otter" Stratton
- John Vernon
- Dean Vernon Wormer
- Verna Bloom
- Marion Wormer
- Tom Hulce
- Larry "Pinto" Kroger
- Cesare Danova
- Mayor Carmine DePasto
- Peter Riegert
- Donald "Boon" Schoenstein
- Stephen Furst
- Kent "Flounder" Dorfman
- Sarah Holcomb
- Clorette DePasto
- Bruce McGill
- Daniel Simpson "D-Day" Day
- Martha Smith
- Barbara "Babs" Jansen
- Mary Louise Weller
- Mandy Pepperidge
- James Daughton
- Greg Marmalard
- Mark Metcalf
- Doug Neidermeyer
- James Widdoes
- Robert Hoover
- John Landis
- Director
- Ivan Reitman
- Producer
- Matty Simmons
- Producer
- Elmer Bernstein
- Original Music
- Stephen Bishop
- Original Music
- Charles Correll
- Cinematographer
- George Folsey Jr.
- Film Editing
- Michael Chinich
- Casting
- John J. Lloyd
- Art Director
- Hal Gausman
- Set Decoration
- Clifford C. Coleman
- First Assistant Director
- Harold Ramis
- Screenwriter
- Douglas Kenney
- Screenwriter
- Chris Miller
- Screenwriter
