Niall MacGinnis was an Irish actor who made around 80 screen appearances.
Jason and the Argonauts
Zeus
49th Parallel
Vogel
Hamlet
Sea Captain
Anna Karenina
Konstantin Levin
Night of the Demon
Dr. Julian Karswell
The Spy Who Came In from the Cold
German Checkpoint Guard
The Viking Queen
Tiberian
Lust for Life
Roulin
Helen of Troy
Menelaus
The War Lord
Odins
Kidnapped
Mr. Shaun
Tarzan's Greatest Adventure
Kruger
The Edge of the World
Andrew Gray
Becket
Baron
Never Take Sweets from a Stranger
Defense Counsel
Krakatoa, East of Java
Harbor Master
The Prince and the Pauper
Father Andrew
Betrayed
Blackie
Martin Luther
Martin Luther
The Man Who Finally Died
Brenner
The Kremlin Letter
Erector Set
Sword of Sherwood Forest
Friar Tuck
Behind the Mask
Neil Isherwood
The Truth About Spring
Cleary
A Man Could Get Killed
Ship's Captain
Captain Boycott
Mark Killain
Murder in the Cathedral
Herald
Sinful Davey
Boots Simpson
Chance of a Lifetime
Baxter
Conflict of Wings
Harry Tilney
River of Mystery
Garwood Drum
The Devil's Agent
Paul Vass
Tawny Pipit
Jimmy Bancroft
Island of Terror
Mr. Roger Campbell
Alexander the Great
Parmenio
Hell Below Zero
Dr. Howe
Foxhole in Cairo
Radek
Torture Garden
Dr. Silversmith (segment 1 "Enoch")
The Crimson Circle
Jack Beardmore
Talk of a Million
Tom Cassidy
The Shiralee
Beauty Kelly
No Room at the Inn
O'Rane
Shake Hands with the Devil
Michael O'Leary
Undercover
Dr. Jordon
The Day Will Dawn
Olaf
East of Piccadilly
Joe
Ourselves Alone
Terence Elliott
Henry V
Macmorris - Captain in the English Army
Knights of the Round Table
Green Knight
The Nun's Story
Father Vermeuhlen
A Face in the Rain
Klaus
A Terrible Beauty
Ned O'Neill
Billy Budd
Captain Nathaniel Graveling
Diamond City
Hans Muller
This Other Eden
Brendan Devereaux
Johnny Nobody
Defending Counsel Sullivan
Debt of Honour
Lt. Peter Stretton
The Demi-Paradise
Man on Ship-Dedication Stand
The Shoes of the Fisherman
Capuchin Monk
The Webster Boy
Headmaster
We Dive at Dawn
Torpedo Gunner's Mate - C / P.O. Mike Corrigan
No Highway in the Sky
Christopher Columbus
Juan de la Cosa
The MacKintosh Man
Warder
She Didn't Say No!
James Casey
Turn of the Tide
John Lunn
The Luck of the Irish
Derek O'Neill
Special Delivery
Sidney
In the Nick
Prison Governor