The Monster is definitely Mark Labbett. That mouse on the mushroom the other day was a reference to the cat ‘chasing’ the mouse- he mentioned ‘Beast Mode’ in one performance, he’d know how to emulate an American accent as he did the Chase USA. Those ‘Grammies’ on his head might actually be NTAs. There was an episode of Jeremy Kyle once where people said the guest looked like a mixture of Mark and Tony Hadley- so that might be why he views him as a hero? Because people think they somewhat look alike? He’s also mentioned liking rock and roll music on The Chase in the past- he always seems to get questions about the genre correct. He also said he eats confidence for breakfast, which would fit with the Chasers’ pantomime villain personalities.
Doesn't fit the 1 truth or 2 lies as he is not CeLo Green, hasn't had a hit with Calvin Harris and does not have an identical twin brother.