He began work as a newspaper journalist, first for the Western Mail in Plymouth, in 1920, then for the Daily Dispatch in Manchester, before moving to London to be a theatre critic and feature writer for The Star. He began broadcasting for the BBC in 1926, but during World War II served in the Devonshire Regiment and worked for the British Forces Broadcasting Service, which he was managing by 1944, from a studio in Algiers. He reached the rank of lieutenant-colonel and was mentioned in dispatches.
Between 1946 and 1949 he was a script editor for the BBC. He also created and produced Pick of the Week, a compilation of the week's broadcast highlights, which he selected. His works for the BBC included scripts for television, including the first 35 episodes of the UK version of This Is Your Life, and radio, from which there was at least one spin-off book, the crime fiction Meet the Rev. He also wrote the novelisation tie-ins for Steptoe and Son. He co-wrote George Formby's last film, George in Civvy Street.
- —— (1946). Meet the Rev. Sampson Low.
- —— (1961). Profitable scriptwriting for tv & radio. Pearson.
- —— (1964). Battledress broadcasters : a history of the British Forces Broadcasting Service. British Forces Broadcasting Service.
- —— (1964). Steptoe and Son. Hodder & Stoughton.
- —— (1966). Steptoe and Son at the Palace. Hodder & Stoughton.
- He changed his surname by deed poll on 10 June 1931: "No. 33727". The London Gazette. 19 June 1931. p. 4045.
- "High Court Of Justice". The Times. 17 May 1955. p. 4. Retrieved 29 August 2014. (subscription required)
- "Mr Gale Pedrick". The Times. 24 February 1970. p. 10. Retrieved 29 August 2014. (subscription required)
- Some sources give a birth date of 1873, apparently confusing Pedrick with another person of similar name.
- "No. 37368". The London Gazette. 29 November 1945. p. 5812.
- "Broadcasting – Home Service". The Times. 31 January 1940. p. 6. Retrieved 29 August 2014. (subscription required)
- "Desert Island Discs – Castaway : Gale Pedrick". BBC Online. BBC. Retrieved 29 August 2014.