The Chase star The Beast vows to be 'the skinniest chaser' 11 Jan, 2021 01:59 AM 2 minutes to read Mark Labbett, aka The Beast and star of The Chase wants to keep losing weight and become "the skinniest chaser". Photo / Getty Images Mark Labbett, aka The Beast and star of The Chase wants to keep losing weight and become "the skinniest chaser". Photo / Getty Images NZ Herald The Chase star Mark Labbett spent much of 2020 focusing on weight loss and his overall health after a suspected case of Covid-19 saw him suffer from a "complete loss of appetite, no sense of smell, a temperature, exhaustion and the worst fever of my life," he told The Sun on Sunday at the time.