I know there are a few Jonathan Creek fans here who might be interested in this.
From BBC Media Centre
Jonathan Creek will be returning to BBC One in a brand new 90-minute special this Easter and the BBC today reveals casting details.
In Jonathan Creek: The Clue Of The Savant's Thumb, Alan Davies returns in the title role, assisted once again by Sheridan Smith (Quartet, Accused, Gavin & Stacey) as fellow investigator Joey Ross.
Also returning is Rik Mayall (Bottom, The New Statesman, Blackadder and The Young Ones) in his role as DI Gideon Pryke.
The guest cast list for the episode will include: Sarah Alexander (Me And Mrs Jones, The Worst Week, The Jury, Green Wing), Joanna Lumley (The Wolf Of Wall Street, Absolutely Fabulous), Nigel Planer (I Give It A Year, The List, The Hunt For Tony Blair, plus new West End musical Charlie & The Chocolate Factory) and Hasina Haque (Casualty, I Give
It A Year).
In The Clue Of The Savant's Thumb, Creek and fellow investigator Joey Ross are drawn into a complex case involving a secret society, seemingly supernatural events at a girls' boarding school, and the miraculous disappearance of a body in front of three witnesses.
Written and directed by the show's creator David Renwick, filming is currently underway in Sussex, Surrey, Hampshire & Hertfordshire.