Here's the celebrity line ups for The Crystal Maze which returns TONIGHT for its latest episode.
Last month saw the start of a brand new series of the revived game show which first returned to TV screens last year.
Stephen Merchant, who fronted the first celebrity charity show in 2016, didn't return with new Maze Master Richard Ayoade presenting the new 20 episode series.
Tonight (Thursday) is episode four of the new series with celebrities Spencer Matthews, Tom Allen, Andrea McLean, Stacey Solomon and Joe Swash
The new series kicked off in June with its first celeb special starring Strictly Come Dancing winner Ore Oduba, TOWIE's Lydia Bright, dancer Louie Spence, The Last Leg's Alex Brooker and reality star Vicky Pattison entered The Crystal Maze.
Episode 2's celebrity line up was: Scarlett Moffatt, Steve Jones, David Coulthard, Jodie Kid and& Joey Essex
Episode 3's celebrity line up was: Rylan Clark-Neal, Jermaine Jenas, Adil Ray, Tamara Wall and Joel Dommett
As always, the contestants must navigate the Aztec, Medieval, Industrial and Future zones of the maze. They will face a range of skill, mystery, physical and mental challenges to win crystals that equate to time in the final test – the legendary Crystal Dome.
The series is filmed at The Bottle Yard Studios in Bristol, where a purpose built maze spanning over 30,000 square feet is being created by the original Crystal Maze designer, James Dillon (The Mighty Boosh, The Royle Family).
Tom Beck, Head of Live & Events at Channel 4 said of the commission: "The Stand Up To Cancer special was so brilliant and so successful that commissioning a series of The Crystal Maze was almost a no-brainer.
"And I couldn’t be more pleased and excited that Richard has agreed to become the new Maze Master – he’s an inspired choice."
The Crystal Maze continues tonight, rather than Friday, at 9PM on Channel 4.