The TV star wants to take part in the jungle reality show, but claims his size has put bosses off.
The Chasers have been the villains of daytime TV for years, but did you know one of them stood to be an MP and another was once a contestant on the show?
Labbett said he was 29 stone when he left teaching in 2003, but is now below 20 stone for the first time since.
The quiz star was unwell for several weeks earlier in the year and believes it was the coronavirus, although he was never tested.
The Chase's Mark Labbett has admitted that he voted for Anne Hegerty to take on the Bushtucker Trail on last night's I'm A Celebrity... Get Me Out Of Here.