Chevy Chase

Clark Griswold

Acting

Beverly D'Angelo

Ellen Griswold

Acting

Randy Quaid

Cousin Eddie

Acting

Ethan Embry

Russell 'Rusty' Griswold

Acting

Marisol Nichols

Audrey Griswold

Acting

Miriam Flynn

Cousin Catherine

Acting

Shae D'Lyn

Cousin Vicki

Acting

Wayne Newton

Himself

Acting

Wallace Shawn

Marty

Acting

Siegfried Fischbacher

Siegfried

Acting

Roy Horn

Roy

Acting

Sid Caesar

Mr Ellis

Acting

Corinna Harney

Girl at Blackjack Table

Acting

Christie Brinkley

Woman in Ferrari

Acting

Juliette Brewer

Cousin Ruby Sue

Acting

Zachariah Moyes

Cousin Denny

Acting

Shannah Laumeister Stern

Mariah

Acting

C.C. Costigan

Kelli

Acting

Wendy Kaufman

Wendy

Acting

Jerry Weintraub

Jilly

Production

Larry Hankin

Preacher

Acting

Hayley Mortison

Girl in Hot Tub

Writing

Billie Perkins

Casino Guest (uncredited)

Acting

Vanessa Bednar

Hot Pool Model (uncredited)

Acting

Alana Austin

Tourist (uncredited)

Acting

Jeffrey Donovan

Hotel Employee (uncredited)

Acting

Sharon Mendel

Paramedic

Acting

Frank Washko Jr.

Guess Which Hand Dealer

Acting

Joe Lacoco

Riviera Bartender

Acting

Ruth Gillis

Saleswoman

Acting

JoAnn Bush

Flight Attendant (uncredited)

Acting