Alexander Knox

Lovejoy (1986) — Pinder · 2 episodes

Joshua Then and Now (1985) — Sen. Hornby

The Last Place on Earth (1985) — Sir Clements Markham · 7 episodes

Helen Keller: The Miracle Continues (1984) — Mr. Gilman

Gorky Park (1983) — General

The Forgotten Voyage: The Story of Alfred Russel Wallace (1983) — Thomas Bell

American Playhouse (1982) — Henry Stimson · 1 episode

Cry of the Innocent (1980) — Thornton Donegin

Oppenheimer (1980) — Henry Stimson · 1 episode

Churchill and the Generals (1979) — Henry Stimson - Secretary of War

Tinker Tailor Soldier Spy (1979) — Control · 3 episodes

Holocaust 2000 (1977) — Meyer

Truman at Potsdam (1976)

Man Above Men (1973) — The Judge

Nicholas and Alexandra (1971) — The American Ambassador

Skullduggery (1970) — Buffington

Puppet on a Chain (1970) — Colonel De Graaf

Play for Today (1970) — The Judge · 1 episode

Fraulein Doktor (1969) — General Peronne

Run a Crooked Mile (1969) — Sir Howard Nettleton

Shalako (1968) — Henry Clarke

Villa Rides (1968) — President Madero

Accident (1967) — Provost

The 25th Hour (1967)

You Only Live Twice (1967) — Secretary of Defense (uncredited)

How I Won the War (1967) — American General

Bikini Paradise (1967) — Commissioner Lighton

Khartoum (1966) — Sir Evelyn Baring

Modesty Blaise (1966) — Minister

The Psychopath (1966) — Frank Saville

Crack in the World (1965) — Sir Charles Eggerston

Mister Moses (1965) — Rev. Anderson

Woman of Straw (1964) — Detective Inspector Lomer

Man in the Middle (1964) — Colonel Burton

The Hidden Truth (1964) · 4 episodes

In the Cool of the Day (1963) — Frederick Bonner

Festival (1963) — Edmond Duval · 1 episode

The Damned (1962) — Bernard

The Share Out (1962) — Colonel Calderwood

The Longest Day (1962) — Maj. Gen. Walter Bedell Smith

The Saint (1962) — Governor Hudson Inverest · 1 episode

Oscar Wilde (1960) — Sir Edgar Clarke

Crack in the Mirror (1960) — President

Operation Amsterdam (1959) — Walter Keyser

The Wreck of the Mary Deare (1959) — Petrie

Intent to Kill (1958) — Dr. McNeil

The Two-Headed Spy (1958) — Gestapo Leader Müller

Davy (1958) — Sir Giles Manning

Storm Over Jamaica (1958) — Leonard Pawley

Chase a Crooked Shadow (1958) — Chandler Bridson

The Vikings (1958) — Father Godwin

Hidden Fear (1957) — Hartman

High Tide at Noon (1957) — Stephen MacKenzie

Reach for the Sky (1956) — Mr. Joyce

Alias John Preston (1955) — Dr. Peter Walton

The Night My Number Came Up (1955) — Owen Robertson

The Sleeping Tiger (1954) — Dr. Clive Esmond

The Divided Heart (1954) — Chief Justice

One Just Man (1954)

Mark Saber (1954) · 1 episode

Europa '51 (1952) — George Girard

Paula (1952) — Dr. Clifford Frazer

Two of a Kind (1951) — Vincent Mailer

Man in the Saddle (1951) — Will Isham

I'd Climb the Highest Mountain (1951) — Tom Salter

The Son of Dr. Jekyll (1951) — Dr. Curtis Lanyon

Saturday's Hero (1951) — Professor Megroth

Hallmark Hall of Fame (1951) — Henry Stimson · 1 episode

Tokyo Joe (1949) — Mark Landis

The Sign of the Ram (1948) — Mallory St. Aubyn

The Judge Steps Out (1947) — Judge Thomas Bailey

Sister Kenny (1946) — Dr. McDonnell

Over 21 (1945) — Max W. Wharton

None Shall Escape (1944) — Wilhelm Grimm

Wilson (1944) — Woodrow Wilson

This Above All (1942) — Rector

Commandos Strike at Dawn (1942) — German Captain

The Sea Wolf (1941) — Humphrey Van Weyden

The Four Feathers (1939) — Bit Part

Cheer Boys Cheer (1939) — Saunders

The Gaunt Stranger (1938) — Dr Anthony Lomond

Rembrandt (1936) — Ludwick’s Assistant (uncredited)