Alan Davies is set to return as Jonathan Creek in a one-off special later this year. The 90-minute episode, titled Daemons' Roost, tells the story of a paralysed veteran horror film director called Nathan Clore, who lives in a house once occupied by a 19th century sorcerer who would summon the powers of Hell to torment his victims.
"Jonathan Creek finds himself in real danger," actor Alan, 50, said of the upcoming show. "It is the spookiest episode ever."
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Alan Davies is set to return as Jonathan Creek for a one-off special
The show will also see Sarah Alexander return as the amateur sleuth's wife Polly, and Warwick Davis in an as-yet undisclosed role.
Shane Allen, head of comedy at the BBC, said: "[This is] another sublime and intricately conceived treat from David Renwick and a welcome return for Alan Davies in this signature role.
"You can see the influence of David's unique blend of dark comedy and crime drama across television since the debut of this show nearly 20 years ago, as it remains a pioneering class act and evergreen favourite with the audience."
Sarah Alexander is reprising her role as Jonathan's wife Polly
The first series of Jonathan Creek aired in 1997, with Caroline Quentin as Jonathan's collaborator Maddy Magellan, and won the BAFTA for Best Drama Series the following year.
He was then partnered with Julia Sawalha, who starred as TV presenter Carla Borrego for seven episodes, between 2002 and 2004, followed by Sheridan Smith, who played Joey Ross for three special episodes in 2009, 2010 and 2013.
The last series of Jonathan Creek aired in 2014 and featured just three episodes. Earlier this year, Alan teased fans about the upcoming special. "We're doing it in the summer – we're shooting a 90-minute one-off," he told Digital Spy in March. "It's 20 years since the first series. 20 years! It's unbelievable."