- Billy Crystal
- Lieutenant Jacob 'Jake' Beser
- Kim Darby
- Lucy Tibbets
- Patrick Duffy
- Colonel Paul Tibbets
- Gary Frank
- Major Tom Ferebee
- Gregory Harrison
- Captain Bob Lewis
- Stephen Macht
- Major Wiiliam 'Bud' Uanna
- Walter Olkewicz
- Sergeant Shug Crawford
- Robert Pine
- Captain William 'Deke' Parsons
- James Shigeta
- Field Marshall Abehata
- Robert Walden
- J. Robert Oppenheimer
- Richard Venture
- Alexander Sachs
- Richard Herd
- General Groves
- Henry Wilcoxon
- Secretary of War Stimson
- Ed Nelson
- President Harry S. Truman
- James Saito
- Lieutenant Tatsuo Yamato
- Marion Yue
- Aya
- Stephen Burleigh
- Capt. Theodore 'Dutch' Van Kirk
- Michael Tucci
- Captain Claude Eatherly
- Stephen Roberts
- President Franklin D. Roosevelt
- Bill Morey
- General George Marshall
- Matt McGowan
- (as Matthew McGowan)
- Richard Christie
- (as Dick Christie)
- John Fujioka
- General Nagai
- Tim Gallin
- Airman
- Kirk Koskella
- MP
- Stephen Keep Mills
- (as Stephen Keep)
- Michael Potter
- Sweeney
- Eileen Saki
- Radio Operator
- Than Wyenn
- General Curtis LeMay
- Harold Dixon
- Sign Painter
- Robert Duddleston
- excited Airman
- Charles Haigh
- Officer Giving Camera to Tailgunner
