WHODUNNIT [UNREHEARSED] 4 Extends Run at Park Theatre, Adds Isaacs, Dockery, Ranganathan

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Jason Isaacs, Michelle Dockery, Romesh Ranganathan, Angela Griffin and Milton Jones will join the cast.

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Following demand, Whodunnit [Unrehearsed] 4 has added further performances on Sunday 28 June at 2.30pm and 7.30pm, giving audiences two final chances to catch this experiential Wild West murder mystery fundraiser.

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The production has also announced its final roster of celebrity Sheriffs, with Jason Isaacs , Michelle Dockery , Romesh Ranganathan , Angela Griffin and Milton Jones joining the line-up. Each performance sees a different guest Sheriff take to the stage, armed only with a script, as they attempt to solve the murder in front of a live audience without ever having rehearsed.

Celebrity guest Sheriffs across the run include Amanda Abbington ; Gillian Anderson ; Clive Anderson ; Adjoa Andoh ; Sanjeev Bhaskar ; Hugh Bonneville ; Gyles Brandreth ; Marcus Brigstocke ; Jim Broadbent ; Simon Callow ; Liz Carr ; Munya Chawawa; Julian Clary ; Michelle Collins ; Nina Conti; Benedict Cumberbatch ; Les Dennis ; Anne-Marie Duff ; Adrian Dunbar ; Kerry Ellis ; Martin Freeman ; David Haig ; Harry Hill ; Adam Hills; Tamsin Greig ; Toby Jones ; Paterson Joseph ; Russell Kane ; Damian Lewis ; Matt Lucas ; Chris McCausland; Tim McInnerny ; Ian McKellen ; Gareth Malone ; Gabriel Macht ; David Mitchell ; Al Murray; Dara Ó Briain; Dermot O'Leary; Tamzin Outhwaite ; Katherine Parkinson ; Sara Pascoe; Joe Pasquale ; Simon Pegg ; Sue Perkins ; Clarke Peters ; Iwan Rheon ; Rob Rinder; Gaby Roslin ; Suzi Ruffell; Greta Scacchi ; Alison Steadman ; Rhashan Stone ; Meera Syal ; Emma Thompson ; Cathy Tyson ; Tim Vine ; Bradley Walsh; Mark Watson ; Jodie Whittaker ; Olivia Williams ; Gary Wilmot ; Greg Wise , with Ian McKellen also lending his voice to the chaos.

Set in the lawless Wild West town of Graveside, Whodunnit [Unrehearsed] 4 sees 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 as a new sheriff rides into town, tasked with solving the mystery of the missing gold.

Accompanying the celebrity guest sheriffs in the cast are Toby Baddeley (The Rivals and Twelfth Night with The New Forest Players and Antigone with Vienna's English Theatre) as ‘Buck Steed', Caroline Deverill (Whodunnit [Unrehearsed] 2 & 3 at Park Theatre , Typical Rainbow with Turbine Theatre), as ‘Dawn Frencham', Gabriel Fogarty-Graveson (The Co-op at Park Theatre and English Theatre of Hamburg, Our Little Life at the Black Box Studio, Slovenia, The Merry Wives of Windsor with OVO), as ‘Jim Ranson', Iona Fraser (The Creakers, Southbank Centre / Theatre Royal Plymouth, The Play That Goes Wrong, Duchess Theatre, Dear Evan Hansen, West End), as ‘Verity Hargreaves', Edward Kaye (multi-instrumentalist making his London theatre debut) as ‘ James Early ', Ian Oakley (Dracapella, Park Theatre , The Color Purple, UK Tour) as Willy the Pianist, Matthew Romain (The Curious Case of Benjamin Button, Ambassadors Theatre , The Score, Theatre Royal Haymarket, Grapes of Wrath with National Theatre) as ‘Rev. Virgil', Susanna Wolff (Whodunnit & her one-woman show Totally Fine, Park Theatre ) as ‘Meg Frencham' and ensemble roles to be played by Molly Barton and Killian Macardle .

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 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 fully themed food and drink offer completes the experience, with a selection of Old West-inspired cocktails available to enjoy.

Jez Bond , co-writer & director, and Park Theatre 's Artistic Director said, “One of the joys of Whodunnit [Unrehearsed] 4 has been seeing audiences throw themselves into the world of the show. This year, people have arrived in full Wild West finery, enjoyed the live pre-show entertainment, themed food and drinks and helped create an unforgettable atmosphere throughout the building whilst raising vital funds for our charity. We're delighted to be extending the run with two final performances and can't wait to welcome even more guest Sheriffs to Graveside.”

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_Originally reported by [BroadwayWorld](https://www.broadwayworld.com/westend/article/WHODUNNIT-UNREHEARSED-4-Adds-Extra-Performances-at-Park-Theatre-20260604)._