Writer/producer Judith Colquhoun began her professional writing career in television during the early-mid 1970s and has since had an extensive career providing episodes for many of Australia's most popular television series, including Bellbird, The Flying Doctors (1986/1990), A Country Practice (1982-94), Blue Heelers (1994-97), Home and Away (2003) and Neighbours (1994-2007).
Colquhoun's earliest known series episodes were for the anthology series Quality of Mercy (1975) and country soap-opera Bellbird, along with the 1978 telemovie A Good Thing Going (1978). During the 1980s, she wrote for such shows as Holiday Island (1981) and Saturdee (1986), as well as scripting numerous episodes of A County Practice and the television film Hector's Bunyip (1986). Her credits in the 1990s include G.P. (1995), Ocean Girl (1995-96), and Search for Treasure Island (1998), while her post-2000 work has included scripts for The Farm (2001), Something in the Air (2001-02), MDA (2002), and almost forty episodes of Neighbours.
Among Colquhoun's career achievements are several Australian Writers Guild (AWGIE) awards, including three for episodes of A Country Practice: 'When the Bough Breaks' (1984), 'Licensed to Kill' (1988), and 'Bel Canto' (1990).