The retelling of June 6, 1944, from the perspectives of the Germans, US, British, Canadians, and the Free French. Marshall Erwin Rommel, touring the defenses being established as part of the Reich's Atlantic Wall, notes to his officers that when the Allied invasion comes they must be stopped on the beach. "For the Allies as well as the Germans, it will be the longest day"
Lt. Col. Benjamin Vandervoort
John Wayne
Brig. Gen. Norman Cota
Robert Mitchum
Brig. Gen. Theodore Roosevelt Jr.
Henry Fonda
Flying Officer David Campbell
Richard Burton
Pvt. Flanagan
Sean Connery
RAF Officer Mac
Leslie Phillips
Brig. Gen. James M. Gavin
Robert Ryan
U.S. Army Ranger
Paul Anka
Maj. Gen. Dr. Hans Speidel
Wolfgang Büttner
Maj. Gen. Robert Haines
Mel Ferrer
Capt. Frank
Ray Danton
Lord Lovat
Peter Lawford
Col. Thompson
Eddie Albert
Madame Barrault
Arletty
Father Louis Roulland
Jean-Louis Barrault
Pvt. Dutch Schultz
Richard Beymer
Maj. Werner Pluskat
Hans Christian Blech
Mayor of Colleville
Bourvil
Pvt. John Steele
Red Buttons
Maid
Pauline Carton
Janine Boitard, a resistance
Irina Demick
U.S. Army Ranger Major
Fred Dur
U.S. Army Ranger
Fabian
Capt. Harding
Steve Forrest
Sgt. Kaffekanne
Gert Fröbe
Brig. Gen. Edwin P. Parker Jr.
Leo Genn
British Padre
John Gregson
Field Marshal Gerd von Rundstedt
Paul Hartmann
Young GI
Peter Helm
Field Marshal Erwin Rommel
Werner Hinz
RAF Pilot
Donald Houston
Sgt. (later Lt.) John H. Fuller
Jeffrey Hunter
Gen. Wolfgang Häger
Karl John
Maj. Gen. Gunther Blumentritt
Curd Jürgens
Maj. Gen. Walter Bedell Smith
Alexander Knox
Louis
Fernand Ledoux
Cmdr. Philippe Kieffer - Commando Leader
Christian Marquand
Sgt. Wilder
Dewey Martin
Pvt. Morris
Roddy McDowall
Pvt. Watney
Michael Medwin
Pvt. Martini
Sal Mineo
Capt. Colin Maud
Kenneth More
Gen. Erich Marcks
Richard Münch
Gen. Raymond D. Barton
Edmond O'Brien
Maj. Gen. Max Pemsel
Wolfgang Preiss
Joe Williams
Ron Randell
Mother Superior
Madeleine Renaud
Sgt. Guy de Montlaur
Georges Rivière
Pvt. Clough
Norman Rossington
U.S. Army Ranger
Tommy Sands
U.S. Army Ranger
George Segal
RAdm. Janjard
Jean Servais
Destroyer Commander
Rod Steiger
Maj. John Howard
Richard Todd
Lt. Wilson
Tom Tryon
Lt. Col. Ocker
Peter van Eyck
U.S. Army Ranger
Robert Wagner
British Paratrooper
Richard Wattis
Lt. Sheen
Stuart Whitman
Alexandre Renaud
Georges Wilson
Group Capt. J.N. Stagg (uncredited)
Patrick Barr
Lt. Walsh (uncredited)
Lyndon Brook
Col. Caffey (uncredited)
John Crawford
Blumentritt's Adjutant (uncredited)
Armin Dahlen
Pvt. Harris (uncredited)
Mark Damon
British Soldier (uncredited)
Richard Dawson
German Soldier (uncredited)
Eugene Deckers
French Commando (uncredited)
Gil Delamare
Pvt. Coke (uncredited)
Frank Finlay
British Paratrooper (uncredited)
Harry Fowler
Pvt. Hutchinson (uncredited)
Bernard Fox
Meyer's Aide (uncredited)
Robert Freitag
French Commando (uncredited)
Bernard Fresson
Minor Role (uncredited)
Lutz Gabor
German Guard on Train Track (uncredited)
Arnold Gelderman
British Soldier (uncredited)
Harold Goodwin
German Soldier (uncredited)
Walter Gotell
Gen. Dwight D. Eisenhower (uncredited)
Henry Grace
Minor Role (uncredited)
Clément Harari
Frau Maria Rommel (uncredited)
Ruth Hausmeister
RAF Briefing Officer (uncredited)
Jack Hedley
Manfred Rommel (uncredited)
Michael Hinz
Adm. Creasey (uncredited)
Walter Horsbrugh
Capt. Helmuth Lang (uncredited)
Til Kiwe
British Soldier (uncredited)
Harry Landis
Col. Gen. Alfred Jodl (uncredited)
Wolfgang Lukschy
Camp Cook (uncredited)
Victor Maddern
Glider Doctor (uncredited)
Howard Marion-Crawford
Canadian Doctor (uncredited)
Neil McCallum
RAdm. Alan G. Kirk (uncredited)
John Meillon
Capt. Ernst During (uncredited)
Kurt Meisel
Paratrooper (uncredited)
Gérard Moisan
Cook (uncredited)
Tony Mordente
Major in Ste. Mère-Eglise (uncredited)
Bill Nagy
Lt. Fritz Theen (uncredited)
Rainer Penkert
German Officer with Rupert (uncredited)
Malte Petzel
Roosevelt's Aide (uncredited)
John Phillips
WRNS Officer (uncredited)
Siân Phillips
Jean (uncredited)
Maurice Poli
Sgt. Bernhard Bergsdorf (uncredited)
Hartmut Reck
Gen. Sir Bernard L. Montgomery (uncredited)
Trevor Reid
Col. Josef 'Pips' Priller (uncredited)
Heinz Reincke
Firefighter (uncredited)
Alexandre Renaud
Col. Schiller (uncredited)
Paul Edwin Roth
Gen. Hans von Salmuth (uncredited)
Ernst Schröder
Luftwaffe Major (uncredited)
Dietmar Schönherr
Lt. Col. Helmuth Meyer (uncredited)
Heinz Spitzner
Lt. Gen. Omar N. Bradley (uncredited)
Nicholas Stuart
German Officer (uncredited)
Hans Söhnker
Housekeeper (uncredited)
Alice Tissot
French Commando (uncredited)
Michel Tureau
Paratrooper (uncredited)
Roland Urban
Pemsel's Adjutant (uncredited)
Vicco von Bülow
US Army Medic (uncredited)
Joe Warfield
French Spitfire Pilot (uncredited)
Dominique Zardi