Self (archive footage)
'Fail-Safe' and the Cold War (2020)
Self
Revisiting 'Fail-Safe' (2000)
Joe Kennedy
The Rat Pack (1998)
Hamilton Fisk
Love, Cheat & Steal (1993)
The Old Man
RoboCop 2 (1990)
Uncle Tom
A Waltz Through the Hills (1988)
Mr. Browne
The Dead (1987)
RoboCop (1987)
Alexander Drake
Dark Mansions (1986)
Judge Sternhill
The Whoopee Boys (1986)
Grig
The Last Starfighter (1984)
Conal Cochran
Halloween III: Season of the Witch (1982)
Albrecht Von Drachenfels
Artemis '81 (1981)
The Director
Death Ray 2000 (1981)
Mark Twain
Mark Twain: Beneath the Laughter (1979)
Colonel Edward Stryker
Deadly Game (1977)
President Roosevelt
MacArthur (1977)
Father Kemschler
Good Against Evil (1977)
Tip Conaker
Banjo Hackett: Roamin' Free (1976)
Mathew Hatcher
The Quest: The Longest Drive (1976)
Leonard Jerome
Jennie: Lady Randolph Churchill (1974)
Fergus Stephenson
The Tamarind Seed (1974)
J.D. Randall
The Carey Treatment (1972)
Sol Diemus
The People (1972)
Marshal Michel Ney
Waterloo (1970)
Charles Winthrop
The Big Cube (1969)
Steven Grimes
100 Rifles (1969)
Brig. Gen. Warren A. Black
Fail Safe (1964)
Caligari / Paul
The Cabinet of Caligari (1962)
Detective Phil Butler
King of the Roaring 20's – The Story of Arnold Rothstein (1961)
Sir Harry Ivers
One Foot in Hell (1960)
Don McGinnis
A Terrible Beauty (1960)
David Edwards
Imitation of Life (1959)
Judge Millard Isham
The Young Land (1959)
Arnold Bronn
Home Before Dark (1958)
Dermot Kinross
That Woman Opposite (1957)
Lord Derry
The Virgin Queen (1955)
Brisquet
The Purple Mask (1955)
Narrator
Hunters of the Deep (1955)
Capt. Ronald Blaine (as Daniel O'Herlihy)
Bengal Brigade (1954)
Prince Hal of Wales
The Black Shield of Falworth (1954)
Robinson Crusoe
Robinson Crusoe (1954)
Danglars
Sword of Venus (1953)
Mr. Ohman
Invasion, U.S.A. (1952)
Lt. Duncan
Operation Secret (1952)
Alfred O'Shea / Narrator (segment Actor's Blood)
Actors and Sin (1952)
Aramis Jr.
At Sword's Point (1952)
Hugh Williams
The Blue Veil (1951)
Commando Captain (uncredited)
The Desert Fox: The Story of Rommel (1951)
Sgt.Murphy
Soldiers Three (1951)
Lt. Blakely
The Iroquois Trail (1950)
Alan Breck
Kidnapped (1948)
Macduff
Macbeth (1948)
Duke
Larceny (1948)
Nolan
Odd Man Out (1947)
Harry Brodrick
Hungry Hill (1947)