Byrne was born in London, England. He has sometimes been cast in Nazimilitary roles such as Colonel Vogel in Indiana Jones and the Last Crusade, Major Schroeder in Force 10 from Navarone, Reinhard Beck in The Scarlet and the Black, General Olbricht in The Plot to Kill Hitler and Obergruppenführer Odilo Globocnik in the BBC radio dramatisation of the novel Fatherland by Robert Harris. Also seen as the aged but fanatical SS General Neurath in "Outp...
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Indiana Jones and the Last Crusade
As Vogel
Blood: The Last Vampire
As Elder
The Saint
As Vereshagin
Gangs of New York
As Horace Greeley
Battlefield Earth
As Parson Staffer
The Search for Alexander the Great
As Demosthenes
The Scarlet Blade
As Lt. Hawke
The Musketeer
As Treville, Head of the Musketeers
Beyond the Sea
As Dr. Andretti
The Eagle Has Landed
As Karl
Vampyres
As Playboy
The Medusa Touch
As Duff
Buster
As Poyser
The Infiltrator
As Dieter Creutz
Running Late
As Clitheroe
The Island on Bird Street
As Bolek
In the Secret State
As Guy Preger
The Good Father
As Leonard Scruby
Force 10 from Navarone
As Schroeder
Hornblower: The Even Chance
As Captain Keene
Sharpe's Company
As Major Nairn
Outpost: Black Sun
As Neurath
Rogue Male
As Interrogator
Man and Superman
As Henry Straker
Butley
As Reg Nuttall
Diana
As Christiaan Barnard
The Image
As The Artist
Harry Price: Ghost Hunter
As Sir Charles Harwood
Henry VI Part 3
As Marquess of Montague / Father that killed his son
The Tragedy of Richard III
As Duke of Buckingham
Henry VI Part 2
As John Hume / Lieutenant
Henry VI Part 1
As Duke of Alencon
Mortdecai
As The Duke
Ms or Jill and Jack
Murderous Decisions
As Octave
The Silent Playground
As Roger
The Gold Machine
As Andrew Norton
The Plot to Kill Hitler
As Friedrich Olbricht
Much Ado About Nothing
As Claudio
Headmaster
Tomorrow Never Dies
As Admiral Kelly - HMS Bedford
30 Years to Life
As Oliver Mather
Mauá - O Imperador e o Rei
As Mr. Carruthers
Braveheart
As Smythe
A Few Short Journeys of the Heart
As Blank/German/Old Geezer
The Absence of War
As Bryden Thomas
Imogen's Face
As Patrick
The Omen
As Monk (uncredited)
Hildegard
As Volmar
Agatha Christie's The Pale Horse
As Venables
Sharpe: The Legend
As Nairn
Break In
As Clarke
The Sum of All Fears
As Anatoli Grushkov
A Bridge Too Far
As Lt. Col. Giles A.M. Vandeleur
If It's a Man – Hang Up!
As Richard Lovell
The Mark of Cain
As Lieut General Strathairn
The Scarlet and the Black
As Reinhard Beck
Quartet
As Frank White
Henry VIII and His Six Wives
As Edward Seymour
The Crooked Man
As Archie Saunders
The Return of the Dancing Master
As Emil Wetterstedt
Champions
As Richard Hussey
Sunday
As Lord Widgery
Intrigo: Death of an Author
As Keller
The Happy Valley
As John Carberry
The First Line
As Richard
The Last Witness
As Coroner
Theban Plays: Oedipus the King
As Chorus
The Fix
As Sam Campbell
Proof of Life
As Lord Luthan
Wednesday Love
As Bruce
Alien Overlords
As Michael
Coming Out
As Gunnar Wedelman
Nostradamus
As Inquisitor
Conduct Unbecoming
As 2nd Lt. Toby Strang
Apt Pupil
As Ben Kramer
The Two Gentlemen of Verona
As Antonio
Gunshy
As Lange
Harry Potter and the Deathly Hallows: Part 1
As Gellert Grindelwald
Sharpe's Enemy
As Major Nairn
Sharpe's Honour
As Major Nairn
The Silence of the Sea
As Werner Von Ebrennac
Intrigo: Samaria
As Commissioner Keller
Thriller
As Richard Lovell
Hornblower
As Captain Keene
Sharpe
As Major Nairn
Ultimate Force
Double the Fist
The Bill
Tales of the Unexpected
As Patrick Marney
A Touch of Frost
As Alex Ormrod
Silent Witness
Between the Lines
The Practice
As Officer (uncredited)
Crown Court
Waking the Dead
As Joe Brackley
The Enigma Files
As David Stanley
The Mists of Avalon
As Merlin
Empire
As Cicero
Yes, Prime Minister
Play for Today
A Sort of Innocence
Smiley's People
As Peter Guillam
Within These Walls
No Bananas
As Edward Grant
Oliver's Travels
As Moody
The Vice
BBC Television Shakespeare
Heat of the Sun
The Ruth Rendell Mysteries
As DCC Charles Griswold
Saracen
As Col. Patrick Ansell
Secret Army
As Paul Vercors
Crossing Lines
As Edward Baxendale
Ellis Island
As Dr. Carl Travers
Bodies
As Old Mullins
The Living and the Dead
As Ebenezer Alsop
Shades of Greene
As Trevor's Father
Lord Mountbatten: The Last Viceroy
As George Abell
Coronation Street
As Ted Page
Midsomer Murders
As Keith Grundy
Lady Killers
As Edward Marshall-Hall KC
Agatha Raisin
As Bishop Parsons
Hamish Macbeth
As Duncan Scott
The Professionals
As Werner Dreisinger
Strike
As Roy Phipps