Having been described as both a leading man and a character actor, he is primarily remembered for his roles as authority figure George Banks in Mary Poppins, fraudulent magician Professor Emelius Browne in Bedknobs and Broomsticks and as hapless antagonist Peter Thorndyke in The Love Bug. In 2002, two years after his death on 24th June 2000, he was posthumously inducted as a Disney Legend.
He appeared in dozens of other films in addition to the above ones; some of which include: "Pimpernel" Smith (1941), I See a Dark Stranger (1946), School for Secrets (1946), Sleeping Car to Trieste (1948), Here Come the Huggetts (1948), Vote for Huggett (1949), The Wooden Horse (1950), Three Men in a Boat (1956), Follow That Horse! (1960) and his final film role in 1980 as Sir Richard Avery in The Fiendish Plot of Dr. Fu Manchu.
For fans of Basil Radford and Naunton Wayne he starred in the 1949 film Helter Skelter where he played the part of Nick Martin (pictured).