The Chase’s Mark Labbett looks unrecognisable before weight loss as he reunites with co-stars for Christmas special

THE Chase stars were unrecognisable as they transformed for the show's Christmas special - especially Mark Labbett.

The hit ITV daytime quiz programme aired the first of two festive episodes over the holiday period.

The Chasers were dressed up as characters from Alice in Wonderland tonight - filmed months before The Beast's incredible weight loss.

Mark transformed into Alice, while Anne Hegerty is dressed as the Red Queen.

The show's newest Chaser Darragh Ennis is donning a big hat as he takes on the role of the Mad Hatter.

Meanwhile, Paul Sinha has changed into The White Mouse while Shaun Wallace completes the look as he becomes The Cheshire Cat.

Mark's weight loss has been so drastic that some fans didn't recognise him.

The 57-year-old star has lost a remarkable ten stone in the last few months, with many praising his new look.

Meanwhile others have been left speechless by The Chasers' fancy dress, with one saying: "I will look forward to watching this I absolutely love watching the Christmas Chase special. Which one is you @TheShaunWallace?"

"Mark looks so pretty lol. Love the costumes," said another.

While a third asked: "Who's the hot blonde?"

The Chase has become a household favourite since it debuted in 2009.

It's presented by Bradley Walsh as four contestant answer general knowledge questions in the hope of winning cash.

However, standing in their way is the Chasers - a group of professional quizzers.

The Sun's Deputy Digital TV Editor recently visited the show's set as they recorded the Christmas specials.

After getting all behind-the-scenes inside, Jill Robinson revealed all the secrets fans have wanted to know.

The Chase airs weekdays at 5pm on ITV1 and ITVX.