Gerald Joseph Duggan (10 July 1910 – 27 March 1992) was an Irish-born Australian character actor.

[3] Although he never achieved stardom, he was a familiar face in small roles in film and television, both in Australia and Britain.

[6] Duggan was nominated for the BAFTA Most Promising Newcomer Award for his role as Pat Fulton, but lost to the 13-year-old Hayley Mills in Tiger Bay.

[8] Duggan played the title role in the 1986 children's television series Professor Poopsnagle's Steam Zeppelin.

He appeared in many other television series in Australia and Britain, such as A Country Practice, Mother and Son, The Flying Doctors, Skyways, The Sullivans, Matlock Police, Number 96, Spyforce, Division 4, Boney, Skippy the Bush Kangaroo, The Avengers and Coronation Street.