The Wall host Danny Dyer has promised "high drama" in tonight's (December 23) EastEnders special.
Known on the square as Mick Carter, Danny will be joined by Nancy Carter's Maddy Hill and Martin Fowler actor James Bye as they tackle the tricky titular challenge.
In case you're unfamiliar with the format, The Wall participants go up against a four-storey tall pegboard with different amounts of money displayed on it.
Correct answers to quiz questions allow them to drop a green ball, giving them the chance to add cash to the prize pot. Incorrect answers drop a red ball, taking cash out of the pot.
Related: EastEnders' Danny Dyer reveals his real name – and it has a spelling mistake
Danny confirmed to Digital Spy that Maddy and James were actually on standby to take part in the show originally, and that it was "nice" to have his co-stars take part.
"Maddy and James were the reserves," he said. "Maddy being one of my best friends in the world – that was good for me."
According to Danny, the gameshow's production schedule was heavily affected by pandemic-related hiccups, as he explained: "We had a schedule to film 12 episodes in a 10 day period.
"But when we were losing days it meant that episodes were backing up. So it got to a point where I was doing three episodes a day, and three hours to shoot one show.
"So I needed a lift and I needed to play it with my friends and so that really helped. It's a great show, that one. I won't give too much away... but high drama."
Related: EastEnders star Danny Dyer reveals dream to crack America
Asked about his expectations of both Maddy and James, Danny went on to suggest that the latter came into the show "blind".
"I had an inkling that James Bye hadn't ever seen it," he added. "We saw each other in the hotel the night before and I was trying to explain it to him.
"I could tell he was lying a little bit, that he was pretending he'd seen it. I think he watched a bit of it on YouTube in a panic on the way up."
Hill, on the other hand, "loves the show and her dad's a massive fan", according to the host.
Let the game begin.
The Wall's EastEnders Christmas Special airs tonight on BBC One at 7.15pm.
Reporter, Digital Spy
Dan is a freelance entertainment journalist. Beginning his writing career in 2014, Dan's work first graced the pages of cult publications Starburst magazine and Little White Lies before moving onto Total Film, Digital Spy, NME and Yahoo Entertainment.
In the film and TV universe, he kneels at the altar of Jim Carrey, Daniel Plainview, Mike Ehrmantraut and Paulie Walnuts.