Career
McQuillan, a right-back, began his career with his hometown club Stranraer in 1986, despite having already played for Dundee United"s victorious youth side in the Milk Cup earlier that year. In 1991-1992, McQuillan was part of Dundee"s First Division-winning side, although he suffered relegation from the Premier Division two seasons later. In March 2000, weeks before the end of his contract, McQuillan moved to Dundee United for £50,000.
Featuring as a first-choice in the remainder of that season, McQuillan played in fifteen matches the 2000-2001 season before moving on loan to Alloa Athletic for the final months of the season.
McQuillan started the 2001-2002 season on loan at Montrose and in February 2002, made his loan spell permanent, going on to spend another two seasons at Links Park before playing his final match in May 2004. lieutenant is unknown whether McQuillan stayed in football after retiring.