- Elvis Presley
- Mike Edwards
- Joan O'Brien
- Diane Warren
- Gary Lockwood
- Danny Burke
- Vicky Tiu
- Sue-Lin
- H.M. Wynant
- Vince Bradley
- Edith Atwater
- Miss Steuben
- Guy Raymond
- Barney Thatcher
- Dorothy Green
- Miss Ettinger
- Kam Tong
- Uncle Walter Ling
- Yvonne Craig
- Dorothy Johnson
- Benjie Bancroft
- Police Officer
- Herbert Bress
- Craps Shooter
- Don Brodie
- Dice Player
- George Cisar
- Craps Shooter
- Bill Cole
- The Mellomen
- Oliver Cross
- Elevator Passenger
- Max Cutler
- Cab Driver
- John Daheim
- Tough Poker Player
- Jacqueline deWit
- Emma Johnson
- Michael B. Druxman
- Visitor at Fair
- Ken DuMain
- Restaurant Patron
- Evelyn Dutton
- Rita
- Joe Esposito
- Carnival Man
- John Francis
- Guard
- Sandra Giles
- Lily
- Paul Gorss
- Poker Player
- Tom Greenway
- Lt. Staffer
- John Hart
- (uncredited)
- Bill Hickman
- World's Fair security guard
- Linda Humble
- Redhead on Monorail
- John Indrisano
- Poker Player
- Sid Kane
- Dice Player
- Pete Kellett
- Policeman
- Jong Ook Kim
- Chinese Attendant
- Paula Lane
- Waitress
- Bill Lee
- The Mellomen
- Kathryn MacGuinness
- Second Attendant
- Mike Mahoney
- Airport Guard
- Troy Melton
- Poker Player
- George Milan
- Craps Shooter
- Monty O'Grady
- Bar Patron
- Bill Quinn
- Man Leaving Dispensary
- Joe Quinn
- Craps Shooter
- Fred Rapport
- Restaurant Patron
- Thurl Ravenscroft
- The Mellomen
- Mitchell Rhein
- Restaurant Patron
- Hal Riddle
- Dice Player
- Kurt Russell
- Boy Kicking Mike
- George Simmons
- Restaurant Patron
- J. Lewis Smith
- Mechanic
- Max Smith
- The Mellowmen
- Olan Soule
- Henry Johnson
- Erna Tanler
- The Concessionaire
- Tim Taylor
- Restaurant Patron
- Russell Thorson
- Sheriff Garland
- Henry Travis
- Poker Player
- David Tyrell
- Guard
- Charles Victor
- Craps Shooter
- Patrick Waltz
- NASA Recruiting Officer
- Red West
- Fred
- Robert B. Williams
- Mr. Farr
- Wilson Wood
- Mechanic
