Trivia

Brother of actresses Sybil Thorndike and Eileen Thorndike.

Was sister Sybil's biographer in 1950.

A cousin of actress Brenda Dunrich, whose mother was a Thorndike.

Along with John Laurie and Esmond Knight, he is one of only three actors other than Laurence Olivier himself to appear in all three Shakespearean films that Olivier directed: Enrique V (1944), Hamlet (1948) and Richard III (1955).

Both he and his sister Sybil Thorndike appeared in films starring and directed by Laurence Olivier: he appeared in Enrique V (1944), Hamlet (1948) and Richard III (1955) while his sister appeared in El príncipe y la corista (1957).

He played the husband of his real life sister Sybil Thorndike in Macbeth (1922).

Father of Daniel Thorndike. It is possible that Rosina Thorndike is also one of his children as she has the same given name is his wife's mother.