Laurence Olivier as Field Marshal Sir John French

Vanessa Redgrave as Sylvia Pankhurst

Maggie Smith as Music Hall Star

John Mills as Field Marshall Sir Douglas Haig

Corin Redgrave as Bertie Smith

Maurice Roëves as George Smith

Ian Holm as President Poincare

Juliet Mills as Nurse

Michael Bates as Drunk Lance Corporal

Edward Fox as Aide to Field-Marshal Haig

Dirk Bogarde as Stephen

Jean-Pierre Cassel as French Colonel

John Clements as Gen. von Moltke

John Gielgud as Count Leopold Von Berchtold

Jack Hawkins as Emperor Franz Josef

Kenneth More as Kaiser Wilhelm II

Michael Redgrave as Gen. Sir Henry Wilson

Ralph Richardson as Sir Edward Grey

Susannah York as Eleanor

Robert Flemyng as Staff Officer in Gassed Trench

Paul Daneman as Czar Nicholas II

Guy Middleton as Gen. Sir William Robertson

Angela Thorne as Elizabeth May 'Betty' Smith

Wendy Allnutt as Florence Victoria 'Flo' Smith

Colin Farrell as Harry Arnold Smith

Malcolm McFee as Frederick Percy 'Freddie' Smith

John Rae as Grandpa Smith

Paul Shelley as Jack Henry Smith

Kim Smith as Richard 'Dickie' Smith

Mary Wimbush as Mary Emma Smith

John Owens as Seamus Moore

Vincent Ball as Australian Soldier

Penelope Allen as Solo Chorus Girl

Pia Colombo as Estaminet Singer

Isabel Dean as Sir John French's Lady

Christian Doermer as Fritz

Joe Melia as The Photographer

Nanette Newman as Nurse

Cecil Parker as Sir John

Natasha Parry as Sir William Robertson's Lady

Gerald Sim as Chaplain

Thorley Walters as Staff Officer

Anthony Ainley as 3rd Aide

Geoffrey Davies as Aide to Haig

Fanny Carby as Mill Girl

Peter Gilmore as Pte Burgess

Ben Howard as Pte Garbett

Norman Jones as Scottish Soldier

Angus Lennie as Scottish Soldier

Paddy Joyce as Irish Soldier

Harry Locke as Heckler

Ron Pember as Corporal

Marianne Stone as Mill Girl

Christine Noonan as Mill Girl (uncredited)

Derek Newark as Shooting Gallery Proprietor

Clifford Mollison as Heckler

Norman Bird as Training Sgt (uncredited)

Jeremy Child as Wealthy Young Man (uncredited)

Richard Davies as Sergeant in Burial Party (uncredited)

Stanley Lebor as Soldier (uncredited)

Jane Seymour as Chorus Girl (uncredited)

Wensley Pithey as Archduke Ferdinand (uncredited)

Meriel Forbes as Lady Pamela Grey

David Lodge as Recruiting Sergeant at Music Hall

Maurice Arthur as Soldier Singer at Chaplain's Address

Freddie Ascott as 'Whizzbang' Soldier

Cecilia Darby as Sir Henry Wilson's Lady

George Ghent as Heckler at Pankhurst Speech

Dorothy Reynolds as Heckler at Pankhurst Speech

John Trigger as Officer at Railway Station

Kathleen Wileman as Emma Smith - Age 4

Phyllis Calvert as Lady Dorothy Haig

Pamela Abbott as Czarina Alexandra (uncredited)

Charlotte Attenborough as Emma Smith - Age 8 (uncredited)

Annie Bee as Girl Friend in 'Goodbyee' (uncredited)

Joanne Brown as Singer (uncredited)

Christopher Cabot as Soldier in Shell Hole (uncredited)

Frank Coda as Soldier in 'Goodbyee' (uncredited)

Ambrose Coghill as His Father (uncredited)

Stella Courtney as Poincaré's Lady (uncredited)

Sheila Cox as Chorus Girl (uncredited)

Elizabeth Craven as Kaiserin Augusta (uncredited)

John Dunn-Hill as Irish Soldier (uncredited)

Ray Edwards as 3rd Staff Officer in Ballroom (uncredited)

Charles Farrell as Policeman (uncredited)

Hermione Farthingale as Chorus Girl (uncredited)

Frank Forsyth as President Woodrow Wilson (uncredited)

Joyce Franklin as Chorus Girl (uncredited)

John Gabriel as Nikolai Lenin (uncredited)

Zeph Gladstone as Sir John's Chauffeuse (uncredited)

Ruth Gower as General von Moltke's Lady (uncredited)

Kim Grant as Soldier in 'Goodbyee' (uncredited)

Carole Gray as Chorus Girl (uncredited)

Paul Hansard as German Officer (uncredited)

Kathleen Helme as Berchtold's Lady (uncredited)

Richard Howard as Young Soldier at Mons (uncredited)

John Hussey as Soldier on Balcony (uncredited)

Dinny Jones as Chorus Girl (uncredited)

Lind Joyce as Scoreboard Girl (uncredited)

Dolores Judson as Haig's Girlfriend (uncredited)

Ruth Kettlewell as Duchess Sophie (uncredited)

Delia Linden as Chorus Girl (uncredited)

Richard Loring as Soldier in 'Goodbyee' (uncredited)

Tom Marshall as Soldier in 'Goodbyee' (uncredited)

Stanley McGeagh as Soldier in Gassed Trench (uncredited)

Isabelle Metcalfe as Girl Friend in 'Goodbyee' (uncredited)

Jenny Morgan as Girl Friend in 'Goodbyee' (uncredited)

Anthony Morton as Italian Military Attaché (uncredited)

Steve Plytas as Turkish Military Attaché (uncredited)

Andrew Robertson as 2nd Scottish Soldier (uncredited)

Sue Robinson as Chorus Girl (uncredited)

David Scheuer as French Soldier (uncredited)

Valerie Smith as Girl Friend in 'Goodbyee' (uncredited)

Guy Standeven as American Officer (uncredited)

Pippa Steel as Scoreboard Girl (uncredited)

P.G. Stephens as Irish Soldier (uncredited)

Tony Thawnton as Officer on Telephone (uncredited)

Christian Thorogood as Irish Soldier (uncredited)

Brian Tipping as 4th Scottish Soldier (uncredited)

Bette Vivian as Heckler at Pankhurst Speech (uncredited)

Tony Vogel as German Soldier (uncredited)

Arthur White as Sergeant in Dugout (uncredited)

Michael Wolf as German Officer (uncredited)

John Woodnutt as British Officer (uncredited)

Julia Wright as Haig's Secretary (uncredited)

Mary Yeomans as Scoreboard Girl (uncredited)

Norman Shelley as Staff Officer in Ballroom