Randy Quaid
Eddie Johnson
Miriam Flynn
Catherine Johnson
Dana Barron
Audrey Griswold
Jake Thomas
Third Johnson
Sung-Hi Lee
Muka Laka Miki
Julian Stone
Melbourne Jack
Beverly Garland
Aunt Jessica
Stephen Furst
Hospital Doctor
Rodger Bumpass
Lab Visitor / Plumber (voice) / Air Controller (voice)
Eric Idle
English Victim
Fred Willard
Professor Doornitz
Ed Asner
Uncle Nick
Kate Simmons
Paige
M
Maya Quin
Airplane Hostess
A
Angela Bennett
Doornitz's Assistant
S
Sal Catalano
Taxi Driver
J
Jay Greenberg
Santa Claus Security Guard
Trish Suhr
Woman (Next to Nick on Plane)
C
Cassidy Laikin
Girl in Airport
C
Caroline Walker
Controller's Wife
B
Bill Power
Air Traffic Controller