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Musical openings · West End

ONE DAY – THE MUSICAL ARRIVES AT THE GARRICK THEATRE.

By Fitzrovia Talent ·

In brief

From bestseller to stage

David Nicholls’ One Day was published in 2009 by Hodder & Stoughton and was named the 2010 Galaxy Book of the Year. (Wikipedia, One Day (novel); Hachette UK) The producers say it has sold over five million copies worldwide and has inspired both film and television adaptations. (Melting Pot cast announcement, via Nimax Theatres) They include the Netflix series starring Leo Woodall and Ambika Mod. (Playbill)

The story begins on 15 July 1988, St Swithin’s Day, when Emma and Dexter meet on the night of their graduation in Edinburgh. Over the next twenty years we return to them on the same day each year. (Royal Lyceum Theatre; The Guardian)

Producer Simon Friend of Melting Pot has said he started reading the novel on the Tube in 2009 and spent more than a decade trying to produce a stage adaptation. (Royal Lyceum Theatre)

A world premiere in Edinburgh

The musical had its world premiere at the Royal Lyceum Theatre in Edinburgh, the city where Em and Dex’s story begins, with a press night on 11 March 2026. It was part of the Lyceum’s 60th anniversary season, the first programmed by artistic director James Brining. (Royal Lyceum Theatre) Because of demand, the run was extended by two weeks to 19 April 2026, and the production included on-stage seating for audiences. (Theatre and Tonic)

In Edinburgh, Freya Catrin Smith was credited with additional material. (Royal Lyceum Theatre) For the West End, additional material is credited to Jeremy Sams. (London Theatre)

The West End transfer

The transfer to the Garrick Theatre was announced on 18 June 2026, with Jamie Muscato and Sharon Rose confirmed to return as Dex and Em. (London Theatre; Playbill)

Muscato’s theatre credits include Cabaret (Playhouse Theatre), The Great Gatsby (London Coliseum) and Moulin Rouge! The Musical (Piccadilly Theatre). Rose’s include Sylvia (Old Vic) and Hamilton (Victoria Palace Theatre). (Melting Pot cast announcement) Muscato received an Olivier Award nomination for Best Actor in a Musical for Natasha, Pierre and The Great Comet of 1812 at the Donmar Warehouse. (Nimax Theatres)

To mark the full cast announcement, Melting Pot released a teaser of Muscato performing “You”, the song in which Dex realises his true feelings for Em. (Melting Pot cast announcement)

The full West End cast

Joining Muscato and Rose are Dan Buckley as Ian, Dougie Carter as Callum, Anna-Jane Casey as Alison Mayhew, Ross Dawes as Mr Godalming, Christopher Dickins as Stephen Mayhew, Kelly Hampson as Sylvie, Jennifer Louise Jones as Miffy and Romona Lewis-Malley as Tilly. Vanessa Fisher and Ewan Murphy are in the ensemble, and Rosalía Morales and Tom Mussell are understudies. The children’s roles of Jasmine and Sonia are played by Bonnie Harper, Esmae Kevany, Hannah McIntyre and Ava-Rae Timewell. (Melting Pot cast announcement)

Dan Buckley, Kelly Hampson and Ewan Murphy all appeared in the Edinburgh production, and One Day marks Rosalía Morales’ West End debut. (Nimax Theatres)

The six-piece band is led by musical director Nigel Lilley on keys, with Luke Baxter (drums), Shelley Britton (violin and synth), Gemma Connor (cello), Matt Isaac (guitar) and Marcus Pritchard (bass and double bass). (Melting Pot cast announcement)

The creative team

Max Webster directs, with choreography by Carrie-Anne Ingrouille, set and costume design by Rae Smith, lighting by Bruno Poet, sound by Simon Baker, video by Lewis den Hertog, and wigs, hair and make-up by Carole Hancock. Nigel Lilley is musical supervisor, musical director and co-arranger, and Simon Hale is orchestrator and co-arranger. Casting is by Stuart Burt CDG, with children’s casting by Keston and Keston. Ingrid Mackinnon is intimacy director, Barbara Houseman is voice coach and Chris Hay is production manager. (Melting Pot cast announcement)

One Day is produced by Simon Friend and Hanna Osmolska for Melting Pot, by arrangement with Universal Theatrical Group, with a group of co-producers that includes the Royal Lyceum Theatre, Edinburgh. (Melting Pot cast announcement)

Dates, tickets and access

(Nimax Theatres; One Day – The Musical, official site)

What it means for performers

A new musical moving from its Edinburgh premiere into the West End gives work to a full company of principals, ensemble, understudies and young performers, and five of this cast, including both leads, return from the original production. If you’re a musical theatre performer looking for representation, see our musical theatre division. Casting directors can send a brief.

FAQ

When does One Day – The Musical open in London? Performances begin at the Garrick Theatre on Tuesday 17 November 2026. The current booking period runs until Sunday 14 March 2027.

Who plays Emma and Dexter in One Day – The Musical? Sharon Rose plays Emma Morley and Jamie Muscato plays Dexter Mayhew. Both created the roles at the world premiere in Edinburgh.

Who wrote One Day – The Musical? The book is by David Greig, with music and lyrics by Abner and Amanda Ramirez of Johnnyswim and additional material by Jeremy Sams. It is based on David Nicholls’ 2009 novel and is directed by Max Webster.

Where did One Day – The Musical premiere? At the Royal Lyceum Theatre in Edinburgh, with a press night on 11 March 2026. The run was extended by two weeks to 19 April 2026.

How much are tickets for One Day – The Musical? Tickets start from £30 through Nimax Theatres, depending on seat and performance.

How long is One Day – The Musical, and what is the age guidance? It runs for approximately 2 hours 40 minutes, including one interval. The age guidance is 12+.

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