Chevy Chase

Character: Clark Griswold

Beverly D'Angelo

Character: Ellen Griswold

Anthony Michael Hall

Character: Rusty Griswold

Imogene Coca

Character: Aunt Edna

Randy Quaid

Character: Cousin Eddie

Dana Barron

Character: Audrey Griswold

Eddie Bracken

Character: Roy Walley

Brian Doyle-Murray

Character: Kamp Komfort Clerk

Miriam Flynn

Character: Cousin Catherine

James Keach

Character: Motorcycle Cop

Eugene Levy

Character: Car Salesman

Frank McRae

Character: Grover

John Candy

Character: Lasky, Guard at Walleyworld

Christie Brinkley

Character: Girl In The Red Ferrari

Jane Krakowski

Character: Cousin Vicki

John P. Navin, Jr.

Character: Cousin Dale

Nathan Cook

Character: Man Giving Directions

Christopher Jackson

Character: Pimp

Mickey Jones

Character: Mechanic

John Diehl

Character: Assistant Mechanic

Jeannie Dimter Barton

Character: Dodge City Cashier

Randy Lowell

Character: Wyatt Earp

Virgil Wyaco II

Character: Indian

Gerry Black

Character: Davenport

James Staley

Character: Motel Desk Clerk

Adelaide Wilder

Character: Car Hop

Tessa Richarde

Character: Motel Guest

Fritz Ford

Character: Neighbor

Eric Stacey

Character: Neighbor

Scott Perry

Character: Swat Leader

Dennis Freeman

Character: Policeman

Michael Talbott

Character: Cowboy

John Craigmile

Character: Camel Rider

Henry Gibson

Character: Hotel clerk (uncredited)

Harold Ramis

Character: Car salesman (voice) (uncredited)