Pat is a multiple world champion in quizzing and one of the world's most successful quiz players and a regular panelist on the popular BBC quiz show Eggheads.
Irish born Pat first found success in 2004 when he became the fourth contestant to win the £1m jackpot on the quiz show Who Wants to Be a Millionaire?. In 2005 he was crowned champion of Mastermind: his specialist subjects included Father Ted, the books of Iain M. Banks and the films of Quentin Tarantino. In 2006 he won the highly prestigious BBC Radio 4 quiz show Brain of Britain, becoming only the fourth person after Roger Pritchard, Kevin Ashman and Chris Hughes to win both that and Mastermind. In 2008 he finished third in BBC Radio 4's Brain of Brains, behind Egghead Chris Hughes and the eventual winner, 2008 World Quizzing Champion Mark Bytheway.
Pat competed in both the first and second series of Are You an Egghead?, a series seeking a new panellist to join the resident team on the BBC2 Eggheads. In the first series, he was beaten in the quarter finals by Mark Kerr. He returned for the second series in 2009, beating fellow Mastermind and Who Wants to Be a Millionaire? winner David Edwards and thereby claiming a place on the Eggheads team. In 2010 he was crowned Mastermind 'Champion of Champions' with a winning score of 36 points with no passes.
Best known for being a regular panelist on Eggheads, Pat is currently the No. 2 ranked quizzer in the world (behind fellow Egghead Kevin Ashman).