The Ghoul (1933) as Nigel Hartley
Friday the Thirteenth (1933) as Horace Dawes
The King of Paris (1934) as Paul Lebrun
Java Head (1934) as William Ammidon
Bulldog Jack (1934) as Morelle
The Return of Bulldog Drummond (1934) as Maj. Hugh "Bulldog" Drummond
Things to Come (1936) as the Boss
Thunder in the City (1937) as Henry Manningdale
The Man Who Worked Miracles (1937) as Colonel Winstanley
South Riding (1938) as Robert Carne
The Citadel (1938) as Dr. Denny
The Divorce of Lady X (1938) as Lord Mere
Smith (1939)
On the Night of the Fire (1939) as Will Kobling
Q Planes (1939) as Major Charles Hammond
The Four Feathers (1939) as Captain John Durrance
The Lion Has Wings (1939) as Wing Commander Richardson
Health for the Nation -DOC.- (1940)
The Day Will Dawn (1942) as Frank Lockwood
The Silver Fleet (1943) as Jaap van Leyden
The Volunteer (1944) as himself
School for Secrets (1946) as Professor Heatherville
Anna Karenina (1948) as Alexei Karenin
The Fallen Idol (1948) as Baines
The Heiress (1949) as Dr. Austin Sloper
Home at Seven (1952) as David Preston
Outcast of the Islands (1952) as Captain Lingard
The Sound Barrier (1952) as John John Ridgefield
The Holly and the Ivy (1952) as Reverend Martin Gregory
Richard III (1954) as Henry Stafford, Duke of Buckingham
Smiley (1956) as Reverend Lambeth
A Passionate Stranger (1957) as Roger Wynter/Sir Clement
Oscar Wilde (1959) as Sir Edward Carson
Exodus (1960) as General Sutherland
Our Man in Havana (1960) as "C"
Long Day's Journey into Night (1962) as James Tyrone
The 300 Spartans (1962) as Themistocles
Hedda Gabler -TV- (1963) as Brack
Woman of Straw (1964) as Charles Richmond
Doctor Zhivago (1965) as Alexander Gromeko
Chimes at Midnight (1965) as the narrator
The Wrong Box (1966) as Joseph Finsbury
Khartoum (1966) as William Gladstone
Twelfth Night (1969) as Sir Toby Belch
Midas Run (1969) as Henshaw
The Bed Sitting Room (1969) as Lord Fortnum of Alamein
Battle of Britain (1969) as Sir David
A Run on Gold (1969) as Henshaw
Oh! What a Lovely War (1969) as Sir Edward Grey
Upon This rock -TV- (1970) as the Guide
David Copperfield -TV- (1970) as Mr. Micawber
The Looking Glass War (1970) as LeClerc
Who Slew Auntie Roo? (1971) as Mr. Benton
Eagle in a Cage (1971) as Sir Hudson Lowe
She Stoops to Conquer -TV- (1971)
Tales from the Crypt (1972) as the Crypt Keeper
Lady Caroline Lamb (1972) as King George IV
Alice's Adventures in Wonderland (1972) as the Caterpillar
Frankenstein: The True Story -TV- (1972) as Mr. Lacey
A Doll's House -TV- (1973) as Dr. Rank
O Lucky Man! (1973) as Monty/Sir James Burgess
Rollerball (1975) as Librarian
The Man in the Iron Mask -TV- (1976) as Colbert de Voliere
Jesus of Nazareth -TV- (1977) as Simeon
No Man's Land -TV- (1978) as Hirst
Watership Down (1978) as the Cheif Rabbit -voice-
Charlie Muffin -TV- (1979) as Sir Archibald Willoughby
Time Bandits (1981) as as Supreme Being
Dragonslayer (1981) as Ulrich
Early Days (1981) as Kitchen
Witness for the Prosecution -TV- (1982) as Sir Wilfred Robarts
Laurence Olivier: A Life -TV DOC.- (1983) as himself
Wagner -TV- (1983) as Pfordten
Invitation to the Wedding (1983) as Uncle Willie
Give My Regards to Broad Street (1983) as Jim
Greystoke: The Legend of Tarzan (1983) as the Sixth Earl of Greystoke