• 
  Norman Panama

  regizor
• 
  Melvin Frank

  regizor

• 
  Norman Panama

  scenarist

• 
  Eleanor Parker

  Lucey Tibbets
• 
  Robert Taylor

  Lt. Col. Paul W. Tibbets 509th Composite Group CO (pilot of Enola Gay)
• 
  G. Pat Collins

  Maj. Gen. Creston
• 
  Sam Hayes

  cranic radio
• 
  Bess Flowers

  Wife at Washington D.C. Airport

• 
  Hayden Rorke

  Dr. Ramsey
• 
  Robert Taylor

  Lt. Col. Paul W. Tibbets 509th Composite Group CO (pilot of Enola Gay)
• 
  Dabbs Greer

  Steve Haddock - the Operations Officer
• 
  Walter Merrill

  Reporter
• 
  Robert Burton

  Gen. Samuel E. Roberts (Tibbets' CO in Africa)
• 
  Jim Backus

  Gen. Curtis E. LeMay
• 
  James Whitmore

  Bill Uanna

• 
  Larry Gates

  Capt. William 'Deak' Parsons, USN
• 
  Harlan Warde

  Chaplain Downey
• 
  Jonathan Cott

  Capt. Dutch van Kirk (navigator, Enola Gay)
• 
  Jeff Richards

  Maj. Thomas Ferebee (Enola Gay bombardier)
• 
  Gregory Walcott

  Burns
• 
  Jack Lomas

  Reporter
• 
  Harold Miller

  Husband at Washington D.C. Airport
• 
  Roger McGee

  Johnson
• 
  Barbara Ruick

  Mary Malone
• 
  Robert Fuller