Clark Wilhelm Griswold, Jr.

Chevy Chase

Ellen Griswold

Beverly D'Angelo

The Girl in the Ferrari

Christie Brinkley

Aunt Edna

Imogene Coca

Russell "Rusty" Griswold

Anthony Michael Hall

Cousin Eddie

Randy Quaid

Audrey Griswold

Dana Barron

Roy Walley

Eddie Bracken

Lasky, Guard at Walleyworld

John Candy

Cousin Catherine

Miriam Flynn

Kamp Komfort Clerk

Brian Doyle-Murray

Motorcycle Cop

James Keach

Car Salesman

Eugene Levy

Grover

Frank McRae

Cousin Vicki

Jane Krakowski

Cousin Dale

John P. Navin Jr.

Man Giving Directions

Nathan Cook

Pimp

Christopher Jackson

Cousin Dale

John P. Navin

Mechanic

Mickey Jones

Assistant Mechanic

John Diehl

Dodge City Cashier

Jeannie Dimter Barton

Wyatt Earp

Randolph Dreyfuss

Indian

Virgil Wyaco II

Wyatt Earp

Randy Lowell

Davenport

Gerry Black

Motel Desk Clerk

James Staley

Car Hop

Adelaid Wilder

Motel Guest

Tessa Richarde

Car Hop

Adelaide Wilder

Neighbor

Fritz Ford

Neighbor

Eric Stacey Jr.

Swat Leader

Scott Perry

Neighbor

Eric Stacey

Policeman

Dennis Freeman

Cowboy

Michael Talbott

Victor J. Kemper

Camel Rider

John Craigmile

Hotel clerk (uncredited)

Henry Gibson

Car salesman (voice) (uncredited)

Harold Ramis

Ralph Burns

Rick Alexander

Rocco Gioffre

Matty Simmons

Bub Asman

Martin Raymond Bolger

Les Fresholtz

Robert G. Henderson

Henry B. Walthall