![Celebrity line-up confirmed for Park Theatre’s Whodunnit [Unrehearsed] 4 fundraiser including Emma Thompson](https://www.westendtheatre.com/wp-content/uploads/2026/02/Whodunnit-Unrehearsed-4-Park-Theatre.-Emma-Thompson-Gillian-Anderson-Hugh-Bonneville-Photos-via-agent.jpg "Celebrity line-up confirmed for Park Theatre’s Whodunnit [Unrehearsed] 4 fundraiser including Emma Thompson")
A number of star names have signed up for the Park Theatre’s comedy Whodunnit [Unrehearsed] 4.
The show is the latest season for their successful Whodunnit [Unrehearsed] comedy, with this fourth season playing at the Park Theatre from 11 May to 27 June 2026.
The Wild West-themed show features a different celebrity guest Sheriff each night, who joins the fun completely unrehearsed, with only wits and wit to fall back on!
Sir Ian McKellen returns this year to lend his voice to the show.
Seven stars have also been confirmed as guest Sheriffs: Emma Thompson, Gillian Anderson, Adrian Dunbar, Jim Broadbent, Sandi Toksvig, Sanjeev Bhaskar and Hugh Bonneville.
63 celebrities will be performing in total across the run, with further guest names to be announced. They are all appearing unpaid as Whodunnit [Unrehearsed] 4 is raising funds for the Park Theatre, which runs without any Arts subsidies. Their target is to raise £600,000.
Emma Thompson returns to the show having also guest-starred in 2022. She told The Times at the weekend that the Park Theatre is, “a really strong beating heart where you can go and witness stories but also take part in the creative life of a community. At the moment the only f***ing hope we’ve got, given how shit and difficult everything is, particularly for young people … it is absolutely essential that there is somewhere where there is a friendly face for them to go and express themselves.”
Thompson also talked about her work on a new stage adaptation of Nanny McPhee, which is rumoured to be coming to the West End. Despite being “faintly traumatised” from her 15 month run in Me and My Girl when she was in her twenties, she said it is “very possible I might do [a short run] when the right thing comes along.”
More about Whodunnit [Unrehearsed] 4
Whodunnit [Unrehearsed] 4 is set in Graveside, a dusty frontier town where the saloon and the general store look suspiciously similar, gold fever is running high, and (hobby) horses roam free. There’s stolen treasure, suspicious strangers, and a Reverend who may not practice what he preaches.
The show’s supporting cast includes Toby Baddeley (The Rivals) as Buck Steed, Caroline Deverill (Typical Rainbow) as Dawn Frencham, Gabriel Fogarty-Graveson (Our Little Life) as Jim Ranson, Iona Fraser (The Creakers) as Verity Hargreaves, Edward Kaye as James Early, Matthew Romain (The Curious Case of Benjamin Button) as Rev Virgil and Susanna Wolff (Everyone’s a Playwright) as Meg Frencham.
“Whodunnit [Unrehearsed] has become a vital fundraiser for Park Theatre, helping to keep the building open, accessible and creatively ambitious. For 2026, we wanted to honour that by going all in – turning the entire theatre into a living, breathing Wild West town and inviting audiences to play along.”- JEZ BOND
The comedy is directed by the Park’s artistic director Jez Bond, and co-written with Bond and Mark Cameron.
The Park Theatre is going all-out this year, creating a more immersive experience by carrying the Wild West theme through the theatre, from the exterior to the bars.
A Western-themed band, including a piano, banjo, fiddle and percussion, will also perform before the show.
Book tickets to Whodunnit [Unrehearsed] 4 at the Park Theatre in London
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