Park Theatre announces returning celebrity guest sheriffs for WHODUNNIT [UNREHEARSED] 4
Further details have been released for Whodunnit [Unrehearsed] 4, the next instalment of Park Theatre’s hugely popular fundraising comedy spectacular, which returns from 11 May – 27 June with the most ambitious version yet.
Set in the lawless Wild West town of Graveside, Whodunnit [Unrehearsed] 4 will see Park Theatre transformed into a fully immersive world – taking over the entire building for the first time, from the street outside to the bars, foyers and both auditoria.
At every performance, a different celebrity will take on the central role of Sheriff – completely unrehearsed! Armed only with an earpiece feeding them lines moments before they speak, each guest must attempt to solve the murder, survive the mayhem and keep the show on track, while the audience watches events spiral in gloriously unpredictable ways. And yes, Sir Ian McKellen returns to lend his voice to the chaos.
Seven of the headline celebrity guest sheriffs are revealed today – all returning to the show after appearances in the show’s previous iterations: Gillian Anderson, Emma Thompson, Adrian Dunbar, Jim Broadbent, Sandi Toksvig, Sanjeev Bhaskar and Hugh Bonneville, with many more star names to be announced.
Accompanying the celebrity guest sheriffs in the cast will be Toby Baddeley as Buck Steed, Caroline Deverill as Dawn Frencham, Gabriel Fogarty-Graveson as Jim Ranson, Iona Fraser as Verity Hargreaves, Edward Kaye as James Early, Matthew Romain as Rev. Virgil, and Susanna Wolff as Meg Frencham.
Whodunnit [Unrehearsed] 4 is a vital fundraiser for Park Theatre, which receives no regular public subsidy. Proceeds from the production directly support the running of the building, the development of new work, and the theatre’s extensive community and education programmes – helping Park Theatre remain an accessible, creative hub for artists and audiences alike.
For 2026, audiences will step straight into Graveside the moment they arrive, with the exterior of the building reimagined as a Wild West streetscape, and both levels of the theatre’s bars dressed with hay bales, whisky barrels and Old West décor. Studio space Park90 becomes The Last Chance Saloon – an exclusive immersive space for cabaret seat and Band A+ ticket holders. Here, audiences will find themed drinks, nibbles, live music, roaming characters and mock gambling, alongside a dedicated cloakroom and bar.
A community chorus will roam the building throughout the evening, playing out scenes, striking up conversations with audience members and occasionally erupting into bar fights. Audiences are encouraged to arrive early, dress up and explore, with a dressing-up box and photo booth adding to the experience. Front-of-house, bar and box office staff will all be in Old West costumes.
When the doors to the Park200 auditorium open, the experience continues with a pre-show welcome from the house band, featuring piano, banjo, fiddle and percussion. Inside, selected seating will be removed to create cabaret-style tables, bringing audiences closer to the action than ever before.
The fourth wall will be constantly broken, with audience members becoming fellow saloon patrons, members of the congregation, courtroom spectators and more. The production features songs throughout, including audience sing-alongs, and two onstage bartender roles – specific tickets that allow audience members to step directly into the world of the show and interact with the guest sheriff.
A fully themed food and drink offer completes the experience, with a selection of Old West-inspired cocktails available to enjoy.
Co-writer & director, and Park Theatre’s Artistic Director, Jez Bond said: “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. It’s joyful, anarchic theatre with a serious purpose behind it: raising crucial funds while giving people an unforgettable night out. No two performances will ever be the same.”
Further celebrity guest sheriffs will be announced.
For more info on Whodunnit [Unrehearsed] 4, please click here.
