• 
  Roy Boulting

  regizor

• 
  Michael Redgrave

  Hamer Radshaw
• 
  Honor Blackman

  Emma
• 
  Gerald Sim

  Reporter
• 
  Maurice Denham

  Prison doctor #2
• 
  Wylie Watson

  Pendleton
• 
  Percy Walsh

  Suddaby
• 
  Ronald Adam

  Radshaws' doctor

• 
  Carla Lehmann

  Lady Lettice
• 
  Ben Williams

  Radical orator
• 
  Hugh Burden

  Arnold Ryerson
• 
  Rosamund John

  Ann
• 
  Anthony Wager

  The Boy Hamer
• 
  David Tomlinson

  Lord Liskeard
• 
  Kenneth Griffith

  Wartime miners representitive

• 
  Bernard Miles

  Tom Hannaway

• 
  Gilbert Taylor

  camera and electrical departme
• 
  Harry Waxman

  camera and electrical departme
• 
  Arthur Ibbetson

  camera and electrical departme
• 
  Stanley Pavey

  camera and electrical departme
• 
  Davis Boulton

  camera and electrical departme
• 
  Stanley Pavey

  imagine
• 
  Günther Krampf

  imagine
• 
  John Wooldridge

  departament sunet
• 
  Richard Best

  montaj
• 
  Hans May

  music department
• 
  John Addison

  music department
• 
  John Boulting

  producător
• 
  Peter De Sarigny

  producător
• 
  Peter De Sarigny

  production manager
• 
  Peter Davies

  sound department
• 
  John W. Mitchell

  sound department
• 
  Bill Warrington

  visual effects