John Collin (actor)

John Collin (18 October 1928 – 25 February 1987) was a British actor frequently seen on UK television during the 1960s and 1970s, mainly in supporting roles. Collin's best-known role was as Detective Sergeant Haggar in the long running BBC police series Z-Cars. Another notable role was as Guardian officer Tom Weston in the 1971 ITV political fantasy The Guardians.
He also played Mr. Alderson, the father-in-law of James Herriot, in the television series All Creatures Great and Small.

• Breakout (1959) - Barman (uncredited)
• The Valiant (1962) - Sergeant
• The Pirates of Blood River (1962) - Lance (uncredited)
• The Witches (1966) - Dowsett
• Star! (1968) - Jack Roper
• Before Winter Comes (1969) - Sgt. Woody
• The Last Escape (1970) - Sgt. Henry McBee
• Been Down So Long It Looks Like Up to Me (1971) - Sergeant Woody
• Innocent Bystanders (1972) - Asimov
• Man at the Top (1973) - Wisbech
• All Creatures Great and Small (1975) - Mr. Alderson
• Tess (1979) - John Durbeyfield
• The Guns and the Fury (1981) - Mr. Randolph