Chevy Chase
Clark Griswold
Beverly D'Angelo
Ellen Griswold
Juliette Lewis
Audrey Griswold
Johnny Galecki
Russell 'Rusty' Griswold
Miriam Flynn
Cousin Catherine
Ellen Hamilton Latzen
Ruby Sue
William Hickey
Uncle Lewis
Nicholas Guest
Todd Chester
Julia Louis-Dreyfus
Margo Chester
Keith MacKechnie
Delivery Boy
Brian Doyle-Murray
Frank Shirley
Natalija Nogulich
Helen Shirley
Alexander Folk
SWAT Officer
Michael Kaufman
Young Executive
Doug Llewelyn
Parade Announcer (voice)
Devin Bailey
Clark (age 9) (uncredited)
Frank Foti Jr.
SWAT Team Sargeant (uncredited)
Traci Kochendorfer
Downtown Shopper (uncredited)