The EastEnders actor, who plays recent arrival Joey Branning, told MSN UK that he expected to receive some jibes on set after taking home the gong.
Laughing off his victory, Witts joked: "I think it's utterly ridiculous and I disagree with the decision entirely! In fact, I think there should be a re-vote because something's gone wrong - perhaps they saw who was last and flipped the list, something like that.
"But it's hilarious because I've never been considered sexy in my life - probably not even by my girlfriend."
Witts added: "I think there's going to be a lot of mickey-taking and general jibes like that. I don't think anyone's going to take it particularly seriously or start treating me any differently, they're just going to be mocking me for it and winding me up."
> 'EastEnders' newbie David Witts: 'Jamie Foreman tells me if I'm rubbish'
> 'EastEnders' wins big at Inside Soap Awards 2012
> Inside Soap Awards 2012: The Full Winners' List