 | Harry Andrews Senior Civil Servant |
 | Michael Caine Squadron Leader Canfield |
 | Trevor Howard Air Vice Marshal Keith Park, Commanding 11 Group RAF |
 | Curd Jürgens Baron von Richter (as Curt Jurgens) |
 | Ian McShane Sergeant Pilot Andy |
 | Kenneth More Group Captain Baker |
 | Laurence Olivier Air Chief Marshal Sir Hugh Dowding, CinC RAF Fighter Command |
 | Nigel Patrick Group Captain Hope |
 | Christopher Plummer Squadron Leader Colin Harvey RCAF |
 | Michael Redgrave Air Vice Marshal Douglas Evill, Senior Air Staff Officer RAF Fighter Command |
 | Ralph Richardson Sir David Kelly, British Ambassador to Switzerland |
 | Robert Shaw Squadron Leader "Skipper" |
 | Patrick Wymark Air Vice Marshal Trafford Leigh-Mallory, Commanding 12 Group RAF |
 | Susannah York Section Officer Maggie Harvey |
 | Michael Bates Warrant Officer Warrick |
 | Isla Blair Andy's Wife |
 | John Baskcomb Farmer (as John Bascomb) |
 | Tom Chatto Willoughby's Assistant Controller |
 | James Cosmo Jamie |
 | Robert Flemyng Wing Commander Willoughby |
 | Barry Foster Squadron Leader Edwards |
 | Edward Fox Pilot Officer Archie |
 | W.G. Foxley Squadron Leader Tom Evans |
 | David Griffin Sergeant Pilot Chris |
 | Jack Gwillim Senior Air Staff Officer |
 | Myles Hoyle Peter |
 | Duncan Lamont Flight Sergeant Arthur |
 | Sarah Lawson Skipper's Wife |
 | Mark Malicz Pasco |
 | André Maranne French NCO |
 | Anthony Nicholls Minister |
 | Nicholas Pennell Simon |
 | Andrzej Scibor Ox |
 | Jean Wladon Jean Jacques, French Liasion Officer |
 | Wilfried von Aacken Oberst Theodor Osterkamp, Commanding Jadgeschwader 51 |
 | Karl-Otto Alberty Generalmajor Hans Jeschonnek, Luftwaffe General Chief of Staff |
 | Alexander Allerson Major Brandt |
 | Dietrich Frauboes Field Marshal Milch (Inspector General, Luftwaffe) |
 | Alf Jungermann Brandt's Navigator |
 | Peter Hager Generalfeldmarschall Albert Kesselring, Commanding Luftflotte 2 |
 | Wolf Harnisch Generalmajor Johannes Fink, Commanding Kampfgeschwader2 (as Wolf Harnish) |
 | Reinhard Horras Bruno |
 | Helmut Kircher Boehm |
 | Paul Neuhaus Major Föhn |
 | Malte Petzel Oberst Joseph "Beppo" Schmid, Head, Military Intelligence Branch |
 | Manfred Reddemann Major Falke |
 | Hein Riess Reichsmarschall Hermann Göring |
 | Rolf Stiefel Adolf Hitler |
 | Vincent Harding Hitler's Aide-de-Camp |
 | Eileen Peel Lady Kelly |
 | Clifford Parrish Kelly's Butler |
 | Richardson Morgan British Embassy Valet |
 | Desmond Jordan General Staff Officer |
 | Michael Guest General Staff Officer |
 | Alan Tucker Sergeant Pilot Charlie Lambert |
 | Hans Brustellin German Batman |
 | Paul Hansard Karl |
 | George Roubicek Sergeant Pilot Huber, Major Falke's crew |
 | Brian Grellis RAF Corporal Ernie (Radar) |
 | Graham Armitage Radar Officer |
 | A.J. Brown Air Observer |
 | Geoffrey King Air Observer |
 | Michael Trubshawe Air Observer |
 | Geoffrey Morris Air Observer |
 | Pat Heywood WAAF Corporal Seymour |
| Alvar Lidell BBC News Announcer (voice) |
 | Basil Dignam Tactical Records Officer |
 | John Savident RAF Officer |
 | Paul Angelis Corporal Fitter Albert |
 | Eric Dodson RAF Officer |
 | Jack Le White Andy's Taxi Driver |
 | John Comer Policeman |
 | George Merritt Civilian |
 | Hilda Barry Old Lady |
 | Kathleen St. John Old Lady |
 | Alister Williamson Air Raid Warden |
 | Reg Lye Workman |
 | Steve Morley Boy Watching Archie's Parachute Landing |
 | Leslie Schofield Aircraft Handler |
 | David McKail Leading Aircraftman Arnold |
 | Nick Tate RAF Officer |
 | Reg Thomason RAF Sergeant |
 | Winifred Sabine Woman in Air Raid Shelter Hall |
 | Gareth Forwood Pilot Officer Alistair |
 | Richard Morant Replacement pilot, Red Section ("Red 2") |
| Paddy Frost Edith |
 | Kate Binchy Grace |
| Frank Sussman ADC in Intelligence Maps Office |
 | Hans Heinz 1st staff officer |
 | David Quilter 'A' Station Pilot |
 | Barry Halliday 'A' Station Pilot |
 | Clive Scott 'A' Station Pilot |
| George Tarry 'A' Station Pilot |
 | Chris Tranchell 'A' Station Pilot |
 | Stuart Hoyle 'A' Station Pilot |
| Johnnie Kettle Small Boy |
| Illona Linthwaite Wendy |
 | Dagobert Walter Hans Falke |
| Jan Jürgens Luftwaffe Officer at Wissant |
| Dieter Asner Infantry Sergeant |
| Horst Johanning sergeant pilots, Major Föhn's crew |
 | Douglas Nottage Sergeant Pilot, Major Föhn's crew |
| Nicky Beaumont Member of Föhn's Crew |
| Franz Van Norde Member of Föehn's Crew |
| Peter Wesp Member of Föhn's Crew |
| Harald Meister Pilot - Föhn's Crew |
 | Hugo Panczak Member of Falke's Crew |
 | Günter Clemens Member of Falke's Crew |
 | Hilary Minster Member of Falke's Crew |
 | Ingo Mogendorf Member of Falke's Crew |
| J. Eduard Taylor Member of Falke's Crew |
 | Leslie Lawton GPO Assistant |
| Steven Counterman Teenager Playing At Docks |
 | Harry Fielder Soldier |
 | Carole Lorimer WREN |
 | Dempsey Cook Young Boy |
| Paul Griffiths Young Boy |
| Karinna Albertson |
 | Pam Rose WAF in the plotting room |
 | Paul Tropea Peasant Boy |
| Rosetta Tropea Peasant Girl |
 | Unknown1318-1 Boy |
 | Unknown1318-2 Boy |
 | Unknown1318-4 German Bomber Co-Pilot |
 | Unknown1318-5 German Soldier |
 | David Webb (scenes deleted) |
| Maria Holmes Unknown |