Bill Murray as John Winger

Harold Ramis as Russell Ziskey

Warren Oates as Sgt. Hulka

P. J. Soles as Stella Hansen

Sean Young as Louise Cooper

John Candy as Dewey "Ox" Oxberger

John Larroquette as Capt. Stillman

John Voldstad as Stillman's Aid

John Diehl as Cruiser

Lance LeGault as Col. Glass

Roberta Leighton as Anita

Conrad Dunn as Francis "Psycho" Soyer

Judge Reinhold as Elmo

Antone Pagán as Hector

Glenn-Michael Jones as Leon

William Lucking as Recruiter

Fran Ryan as Dowager in Cab

Joe Flaherty as Border Guard

Nick Toth as Border Guard

Bill Paxton as Soldier

Linda Dupree as Wrestler

Dennis Quaid as Extra at Graduation Ceremony

Timothy Busfield as Soldier with Mortar

Dave Thomas as M.C.

Robin Klein as Cheerleader

Robert J. Wilke as Gen. Barnicke

Lois Hamilton as Stillman's Girlfriend

Samuel Briggs as Corporal

Joseph X. Flaherty as Sgt. Crocker

Hershel B. Harlson as Shoeshine Man

Solomon Schmidt as Store Owner

Gino Gottarelli as Russian Officer

Gene Scherer as Russian Officer

Dawn Clark as Mud Wrestler

Anita Merritt as Mud Wrestler

Susan Mechsner as Mud Wrestler

Sue Bowser as Mud Wrestler

Leslie Henderson as Mud Wrestler