Chevy Chase
Clark Griswold
Beverly D'Angelo
Ellen Griswold
Randy Quaid
Cousin Eddie
Ethan Embry
Russell 'Rusty' Griswold
Marisol Nichols
Audrey Griswold
Miriam Flynn
Cousin Catherine
Shae D'Lyn
Cousin Vicki
Wayne Newton
Himself
Wallace Shawn
Marty
Siegfried Fischbacher
Siegfried
Roy Horn
Roy
Sid Caesar
Mr Ellis
Corinna Harney
Girl at Blackjack Table
Christie Brinkley
Woman in Ferrari
Juliette Brewer
Cousin Ruby Sue
Zachariah Moyes
Cousin Denny
Shannah Laumeister Stern
Mariah
C.C. Costigan
Kelli
Wendy Kaufman
Wendy
Jerry Weintraub
Jilly
Larry Hankin
Preacher
Hayley Mortison
Girl in Hot Tub
Billie Perkins
Casino Guest (uncredited)
Vanessa Bednar
Hot Pool Model (uncredited)
Alana Austin
Tourist (uncredited)
Jeffrey Donovan
Hotel Employee (uncredited)