- You may be looking for John D. Collins.
John Collin (18 October 1928-25 February 1987[1]) played Brock in the Doctor Who television story The Leisure Hive.
Career[]
He was best known for playing Detective Sergeant Haggar on Z-Cars from 1971-78.
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John Collin (18 October 1928-25 February 1987[1]) played Brock in the Doctor Who television story The Leisure Hive.
He was best known for playing Detective Sergeant Haggar on Z-Cars from 1971-78.