- Jack Carson
- Peter Virgil
- Janis Paige
- Elvira Kent
- Don DeFore
- Michael Kent
- Doris Day
- Georgia Garrett
- Oscar Levant
- Oscar Farrar
- S.Z. Sakall
- Uncle Lazlo Lazlo
- Fortunio Bonanova
- Plinio
- Eric Blore
- Ship's Doctor
- Franklin Pangborn
- Rio Hotel Clerk
- Leslie Brooks
- Miss Medwick
- William Bakewell
- Dudley
- John Berkes
- The Drunk
- Avon Long
- Specialty Singer
- Page Cavanaugh
- Page Cavanaugh
- Page Cavanaugh Trio
- Page Cavanaugh Trio
- Sir Lancelot
- Specialty Singer
- Samba Kings
- The Samba Kings - Musical Ensemble
- John Alvin
- Charles - Travel Agent
- Nestor Amaral
- Pedro
- John Arnold
- Rio Headwaiter
- Carlos Barbe
- Young Man at Wedding
- Barbara Bates
- Stewardess
- Mary Bayless
- Ship Passenger
- Brandon Beach
- Ship Passenger
- MarÃa Belmar
- Ship Passenger
- Mary Benoit
- Ship Passenger
- George Boyce
- Ship Steward
- Paul Bradley
- Wedding Guest
- Chet Brandenburg
- Club Patron
- Leonard Bremen
- Headwaiter
- Kenneth Britton
- Ship Lounge Bartender
- Tex Brodus
- Ship Passenger
- Norma Brown
- Brazilian Girl
- Robert Cabal
- Rio Bellboy
- James Carlisle
- Wedding Guest
- Steve Carruthers
- Wedding Guest
- Wheaton Chambers
- Passport Photographer
- Tristram Coffin
- Headwaiter on Ship
- G. Pat Collins
- Detective Humphrey
- Gino Corrado
- Ship Passenger / Rio Night Club Patron (uncredited)
- Oliver Cross
- Ship Passenger
- Frank Dae
- Minister
- Jay Eaton
- Ad Designer
- Joe Evans
- Bartender
- Mary Field
- Marie - Elvira's Maid
- Bess Flowers
- Ship Passenger
- Charles Fogel
- Tourist
- Phyllis Forbes
- Brazilian Girl
- Gerry Ganzer
- Ship Passenger
- Joe Gilbert
- Wedding Guest
- Fred Godoy
- Rio Doorman
- Dick Gordon
- Wedding Guest
- Sandra Gould
- Telephone Operator
- Stuart Hall
- Tourist
- Sam Harris
- Travel Agency Customer / Ship Passenger (uncredited)
- John Holland
- Best Man
- Stuart Holmes
- Ship Passenger
- Emory Johnson
- Ship Passenger
- Dick Johnstone
- Club Patron
- Douglas Kennedy
- Car Salesman
- Kay Koury
- Vendor
- Otto Kruger
- Wedding Guest
- Louise Lane
- Party Guest
- Perk Lazelle
- Ship Passenger
- Ruth Lewis
- Ship Passenger
- King Lockwood
- Ship Passenger
- Leota Lorraine
- Wedding Guest
- Robert Locke Lorraine
- Wedding Guest
- Wilbur Mack
- Tourist
- Thomas Martin
- Ship Steward
- Martin Mason
- Ship Steward
- Clyde McLeod
- Wedding Guest
- Frank McLure
- Night Club Patron
- Harold Miller
- Ship Passenger
- Ray Montgomery
- Michael's Assistant
- George Moro
- Cuban Waiter
- Sol Murgi
- Wedding Guest
- George Nardelli
- Wedding Guest
- George N. Neise
- Michael's Assistant
- Maila Nurmi
- Ship Passenger
- Eddie Parks
- Ship Messenger
- Rosemary Pettit
- Ship Passenger
- Paul Power
- Party Guest
- Jean Ransome
- Ship Passenger
- Frances Rey
- Cuban Telephone Operator
- Larry Rio
- Cab Driver
- Ramon Ros
- Assistant Hotel Clerk
- Susanne Rosser
- Brazilian Girl
- Paul Russell
- Wedding Guest
- Frank J. Scannell
- Ship Purser
- Scott Seaton
- Tourist
- Cyril Smith
- English Bartender
- Owen Song
- Waiter
- Ted Stanhope
- Ship Waiter
- Paul Stathes
- Party Guest
- Grady Sutton
- Ship Radio Operator
- George Suzanne
- Rio Bellboy
- Tyra Vaughn
- Ship Passenger
- Al Viola
- Self - Guitarist
- Janet Warren
- Organist
- Martin Wilkins
- Ship Waiter
- Victor Zimmerman
- Charles - the Chauffeur
