Stephen Kessler Director Chevy Chase Clark Griswold Actor Beverly D'Angelo Ellen Griswold Actor Randy Quaid Cousin Eddie Actor Ethan Embry Russell "R'usty" Griswold Actor Marisol Nichols Audrey Griswold Actor Miriam Flynn Cousin Catherine Actor Shae D'Lyn Cousin Vicki Actor Wayne Newton Wayne Newton Actor Wallace Shawn Marty Actor Sid Caesar Mr. Ellis Actor Julio Oscar Mechoso Limo Driver Actor Sly Smith Mirage Security Guard Actor Julia Sweeney Mirage Reception Person Actor Christie Brinkley Woman in Ferrari Actor Jerry Weintraub Jilly Actor, Producer Larry Hankin Preacher Actor Siegfried Fischbacher Self Roy Uwe Ludwig Horn Self Elisa Bell Screenwriter Susan Ekins Executive Producer Matty Simmons Executive Producer