• 
  Michael Anderson

  regizor

• 
  Vittoriano Petrilli

  scenarist

• 
  Sophia Loren

  Nora
• 
  George Peppard

  John Curtis
• 
  Richard Johnson

  Duncan Sandys
• 
  Anton Diffring

  German Soldier
• 
  Maurice Denham

  RAF Officer
• 
  Wolf Frees

  German Police Inspector

• 
  John Alderton

  RAF 'Dakota' navigator
• 
  Jeremy Spenser

  SS Officer at rocket plant
• 
  Karel Stepanek

  Prof. Hoffer
• 
  Allan Cuthbertson

  German Technical Examiner
• 
  Patrick Wymark

  Prime Minister Winston Churchill
• 
  Charles Lloyd Pack

  Technical Examiner
• 
  Richard Wattis

  Sir Charles Sims

• 
  Paul Henreid

  General Ziemann
• 
  Ferdy Mayne

  German Officer at rocket plant
• 
  Guy Deghy

  Dutch barge skipper
• 
  Lilli Palmer

  Frieda
• 
  Tom Courtenay

  Robert Henshaw
• 
  Trevor Howard

  Professor Lindemann
• 
  John Mills

  General Boyd
• 
  John Le Mesurier

  British Army Officer
• 
  Gertan Klauber

  Security guard, rocket plant
• 
  Helmut Dantine

  General Linz
• 
  George Mikell
• 
  Gordon Jackson

  R.A.F. Pilot
• 
  William Mervyn
• 
  Philip Madoc

  German police officer
• 
  Carl Duering

  German officer arriving at rocket plant when the plant has been taken over by the SS
• 
  Anthony Quayle

  Bamford
• 
  Richard Todd

  Wing Cmdr. Kendall
• 
  Jeremy Kemp

  Phil Bradley
• 
  John Fraser

  Flight Lt. Kenny
• 
  Barbara Rütting

  Hannah Reitsch
• 
  Sylvia Syms

  Constance Babington Smith

• 
  Carlo Ponti

  producător
• 
  Erwin Hillier

  imagine
• 
  Ernest Walter

  montaj
• 
  Ron Goodwin

  coloană sonoră