Steve Pemberton has revealed that he took his inspiration for a spoof version of his hit TV show Whitechapel from the fairy tale Snow White.
The League Of Gentleman star wrote the funny version of the crime drama for ITV1's Text Santa telethon.
He said after being asked to get involved, he came up with the title Snow White Chapel, and the "mash-up" of the fairy tale and the TV show - when a body is found with a poisoned apple and the detectives go on the trail to find the murderer - quickly followed.
"As soon as I came up with [the title] it gave me the framework I needed," he said. "It's been really fun to do, but it's been strange doing the silly version of Whitechapel, knowing that we're back in the same place soon, doing the serious version of it.
"But it's great; obviously I've done a lot of comedy before, but many actors have got great comic bones. Phil (Davis) and Rupert (Penry-Jones) are really funny, but they don't get a chance to show it. I think viewers like seeing actors not taking things so seriously."
The short sketch will also feature a few surprises along the way, and some guest cameos from other ITV celebs.
Steve revealed he used another famous spoof as the basis for his own: "I took Airplane! as my model because I love the fact that you can be doing a very serious scene and then something ridiculous happens.
"It's for a really good cause and everybody's worked really, really hard on it. You wouldn't believe the amount of people who are here, and the fact they've put all the original sets up for just one day of filming is incredible really. So we're all hoping it pleases people on the night and gets them to ring up."
:: Text Santa airs on Friday, December 21 on ITV1. For information on how to donate, visit http://www.itv.com/textsanta.