June Duprez was an English film actress.
The daughter of American vaudeville performer Fred Duprez and Australian Florence Isabelle Matthews, she was born in Teddington, Middlesex, England, during an air raid in the final months of the First World War.
She began acting in her teens with a theatre company and made her first film, The Crimson Circle, in 1936. Her next film, The Cardinal, was also a success, and she had a small role in The Spy in Black, but it was her fourth film, the epic London Films adaptation of A. E. W. Mason's The Four Feathers, that made her a film star, acting opposite John Clements, Ralph Richardson, and C. Aubrey Smith. Her peak of success came with the landmark fantasy film The Thief of Bagdad, which she also made for Alexander Korda's London Films.
Korda took charge of her career after this point and took her to Hollywood where he set her asking price at $50,000 per film. However, as Duprez had not yet achieved the level of popularity in America that she had in Britain, this tactic only served to place her out of contention for most roles. When she was finally released from Korda's contract she appeared in such low budget fare as They Raid by Night, Little Tokyo, U.S.A., and Tiger Fangs. Clifford Odets' grim None But the Lonely Heart, in which she co-starred with Cary Grant and Ethel Barrymore, commenced a brief return to films of higher production values. Duprez performed well amid a top ensemble cast in René Clair's film version of Agatha Christie's And Then There Were None. That same year she appeared opposite John Loder in The Brighton Strangler. In the film noir Calcutta she starred with Alan Ladd, Gail Russell, and William Bendix. After a few more motion pictures, Duprez moved to New York City for a brief career on and off Broadway. Her final credited film performance was in One Plus One.