(1974) Young Frankenstein

as Gerhard Falkstein

(1960) The Lost World

as Prof. Summerlee

(1967) The Adventures of Bullwhip Griffin

as Quentin Bartlett

(1945) And Then There Were None

as Thomas Rogers

(1951) Alice in Wonderland

as Caterpillar (voice)

(1943) No Time for Love

as Roger Winant

(1941) Ball of Fire

as Prof. Oddly

(1962) Five Weeks in a Balloon

as Sir Henry Vining

(1965) The Sound of Music

as Max Detweiler

(1945) Tonight and Every Night

as Specialty

(1945) Adventure

as Limo

(1948) The Emperor Waltz

as l'empereur François-Joseph

(1953) Never Let Me Go

as Christopher Wellington St. John Denny

(1960) Please Don't Eat the Daisies

as Alfred North

(1947) Singapore

as Deputy Commissioner Hewitt

(1947) The Beginning or the End

as Dr. Chisholm

(1948) Sitting Pretty

as Mr. Clarence Appleton

(1962) Mutiny on the Bounty

as William Brown

(1946) The Green Years

as Jason Reid

(1947) Forever Amber

as Earl of Radcliffe

(1965) Clarence, the Cross-Eyed Lion

as Rupert Rowbotham

(1950) Mr. Music

as Jerome Thisbee

(1955) Jupiter's Darling

as Horatio

(1954) Her Twelve Men

as Dr. Avord Barrett

(1947) The Late George Apley

as Horatio Willing

(1985) The Hugga Bunch

as Bookworm (voice) (uncredited)

(1952) The Merry Widow

as Baron Popoff

(1947) The Foxes of Harrow

as Andre LeBlanc

(1942) Are Husbands Necessary?

as Chuck

(1956) Toy Tiger

as John Fusenot

(1953) Money from Home

as Bertie Searles

(1942) Thunder Birds

as George Lockwood

(1941) Charley's Aunt

as Charley Wyckham

(1960) Let's Make Love

as Prologue Narrator (uncredited)

(1943) Forever and a Day

as Mr. Fulcher

(1973) The Return of Charlie Chan

as Andrew Kidder

(1946) Cluny Brown

as Jonathan Wilson

(1958) Twilight for the Gods

as Oliver Wiggins

(1943) Who Killed Who?

as The Victim (voice) (uncredited)

(1958) Heart of Darkness

as The Accountant

(1963) Burke's Law

as Julian Clarington

(1954) The Wonderful World of Disney

as ---

(1964) Bewitched

as ---

(1948) The Ed Sullivan Show

as Self

(1953) General Electric Theater

as Chancellor

(1954) Lassie

as ---

(1959) The Twilight Zone

as Bartlett Finchley

(1965) Laredo

as ---

(1951) Schlitz Playhouse of Stars

as ---

(1970) McCloud

as ---

(1966) ABC Stage 67

as Whitey

(1995) Backup

as ---

(1961) The Dick Van Dyke Show

as Edwin Carp

(1958) Shirley Temple's Storybook

as Prime Minister