Wallace, who – among other complaints – has been accused by former Newsnight host Kirsty Wark of making jokes of a “sexualised nature” when she was competing on Celebrity MasterChef in 2011, has previously said he resents any insinuation he was “flirting” with someone who is not his wife Anna, 37.

BBC News reported that it sent Wallace's representatives a letter on Nov. 26 outlining allegations of inappropriate sexual comments made by 13 individuals

MasterChef star Gregg Wallace is battling claims he acted in a "sexualised" manner onset on his BBC shows, but he recently hit back at allegations he betrayed his wife during filming

Gregg Wallace and former BBC Newsnight presenter Kirsty Wark clash in the MasterChef kitchen in a resurfaced clip. The scenes, from Celebrity MasterChef in 2011, have resurfaced after Ms Wark claimed Mr Wallace told “sexualised” jokes during filming for the show.

Accusations that the TV presenter made inappropriate sexual comments to co-workers over a 17-year period have come from 13 different people.