Acting

1985

as Bookworm (voice) (uncredited)

1974

as Gerhard Falkstein

1973

as Andrew Kidder

1967

as Quentin Bartlett

1965		Clarence, the Cross-Eyed Lion as Rupert Rowbotham
1965		The Sound of Music as Max Detweiler

1962		Mutiny on the Bounty as William Brown
1962		Five Weeks in a Balloon as Sir Henry Vining

1960		Let's Make Love as Prologue Narrator (uncredited)
1960		The Lost World as Prof. Summerlee
1960		Please Don't Eat the Daisies as Alfred North

1958		Heart of Darkness as The Accountant
1958		Twilight for the Gods as Oliver Wiggins

1956

as John Fusenot

1955

as Horatio

1954

as Dr. Avord Barrett

1953		Money from Home as Bertie Searles
1953		Never Let Me Go as Christopher Wellington St. John Denny

1952

as Baron Popoff

1951

as Caterpillar (voice)

1950

as Jerome Thisbee

1948		The Emperor Waltz as l'empereur François-Joseph
1948		Sitting Pretty as Mr. Clarence Appleton

1947		Forever Amber as Earl of Radcliffe
1947		The Foxes of Harrow as Andre LeBlanc
1947		Singapore as Deputy Commissioner Hewitt
1947		The Late George Apley as Horatio Willing
1947		The Beginning or the End as Dr. Chisholm

1946		The Green Years as Jason Reid
1946		Cluny Brown as Jonathan Wilson

1945		Adventure as Limo
1945		And Then There Were None as Thomas Rogers
1945		Tonight and Every Night as Specialty

1943		Who Killed Who? as The Victim (voice) (uncredited)
1943		Forever and a Day as Mr. Fulcher
1943		No Time for Love as Roger Winant

1942		Thunder Birds as George Lockwood
1942		Are Husbands Necessary? as Chuck

1941		Ball of Fire as Prof. Oddly
1941		Charley's Aunt as Charley Wyckham

Directing

1950

… Director

1949

… Director

1948

… Director