Guy Deghy (born Gedeon Aladar Istvan Deghy; 11 October 1912 – 25 February 1992), was a Hungarian-born actor who appeared largely in British films and television.

He appeared in the 5th episode of the first season of The Saint depicting Inspector Oscar Kleinhaus,^[1] also making another appearance as the same character in an episode of the 5th series. Another example was his 1960 appearance in the Patrick McGoohan television series Danger Man episode "The Traitor" as a guard on a train as well as in the 1961 episode "Name, Date and Place" as Vogel.

His character, Major Wilhelm Wilner, was also one of the few Germans to survive in Where Eagles Dare (1968). He also appeared on the London stage.^[2]

He died in London, England aged 79.