Mark Andrew Labbett is an English quizzer and television personality. Since 2009 he has been one of the "chasers" on the ITV game show The Chase and from late February 2022 rejoined the Australian version of the show. He 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. His nickname on these shows is "The Beast". Labbett has appeared as a contestant on several other television quiz shows and is a regular in quizzing competitions.