1. Mark Labbett previously appeared between 2013 and 2015 on GSN's American version as their sole chaser; between 2016 and 2020 as one of six chasers on the Australian version; and as one of four chasers in the second season of ABC's American revival and from late February 2022 rejoined the Australian version of the show.
Mark Andrew Labbett was born on 15 August 1965 in Tiverton, Devon and attended Bishop Wordsworth's School in Salisbury.
Mark Labbett obtained a Master of Arts degree in mathematics from Exeter College, Oxford, a Postgraduate Certificate in Education in secondary education from the University of Exeter and legal CPE and LPC qualifications from the University of Glamorgan.
Mark Labbett became interested in quizzing when working at Butlins holiday camp, where he supplemented his income with winnings from the quiz machines.
Mark Labbett appeared on Mastermind in 1999, where his specialist subject was the Olympic Games.
Mark Labbett appeared again on Mastermind in 2000, with the animated television show The Simpsons as his specialist subject.
In 2012, Mark Labbett was ranked 89th in the World Quizzing Championships.
In 2016, Mark Labbett took part in the three-part ITV series Sugar Free Farm, when he revealed he has false teeth, as a result of eating too much sugar.
Mark Labbett is one of the "chasers" in the ITV teatime quiz The Chase, first broadcast in 2009 and hosted by Bradley Walsh.
Mark Labbett appeared as one of the seven chasers on the Australian version of The Chase on the Seven Network, alongside fellow UK chasers Anne Hegerty and Shaun Wallace.
Mark Labbett noted that the American version posed far more difficulties for him, as American game shows typically allow far more competent contestants than British or Australian shows.
Mark Labbett joined ABC's US revival of The Chase for its second season.
Mark Labbett moved to Caldicot, Monmouthshire, in 1998 and then to nearby Newport in 2003 before moving to Moorgate, Rotherham, in 2013.
Mark Labbett married his second cousin Katie in 2014, who is 27 years his junior.
In 2025, Mark Labbett revealed he had been diagnosed with Type 2 Diabetes.