Chevy Chase
Clark Griswold
Beverly D'Angelo
Ellen Griswold
Anthony Michael Hall
Rusty Griswold
Dana Barron
Audrey Griswold
Brian Doyle-Murray
Kamp Komfort Clerk
Miriam Flynn
Cousin Catherine
James Keach
Motorcycle Cop
John Candy
Lasky, Guard at Walleyworld
Christie Brinkley
Girl In The Red Ferrari
Jane Krakowski
Cousin Vicki
John P. Navin, Jr.
Cousin Dale
Nathan Cook
Man Giving Directions
John Diehl
Assistant Mechanic
Jeannie Dimter Barton
Dodge City Cashier
James Staley
Motel Desk Clerk
Tessa Richarde
Motel Guest
John Craigmile
Camel Rider
Henry Gibson
Hotel clerk (uncredited)
Harold Ramis
Car salesman (voice) (uncredited)