Step Behind The Stage
Rosie: A New Musical
Adelphi Theatre, London - 17/03/26
Review by Daniel Marshall

Rehearsal Photo Credit: Danny Kaan
After more than a decade in development, Rosie: A New Musical made its long-awaited West End debut last night with a one night only semi-staged gala performance at the Adelphi Theatre. The show is the brainchild of Chris Broom, who has written the book, music and lyrics to tell the remarkable true story of Miss Rosie Boote. We follow her journey from a convent in Ireland to the bright lights of stardom in Edwardian London, weaving together ambition, romance and scandal. With the show’s concept album having already gained significant traction online, there was a clear sense of anticipation in the packed theatre, not just for the show itself, but for the story at its heart.
Given its semi-staged format, the production relies on simplicity in its visual presentation. The orchestra are positioned in sight behind the performers, there is a really nice balance of focus between the storytelling and the music. The orchestration, with arrangements by Clarissa Farran, is one of its most striking elements. Rich and expansive, the score carries a sense of classic musical theatre, with echoes of the golden age running throughout. Under the direction of Yshani Perinpanayagam, the songs feel even more powerful live, with each number hitting on a deeper emotional level.
The story begins with Rosie as a child, played by Santi Cohen, who gives a stellar performance to draw the audience into Rosie’s world from the outset. As the narrative shifts, Lucy Thomas steps into the title role, delivering a performance that more than lives up to the reputation built through the show’s recordings. Her vocals are breathtaking throughout, bringing both power and emotion to Rosie’s journey. It is easy to see why the music has resonated so widely online.
Central to the story is the relationship between Rosie and Geoffrey Taylor, portrayed by Will Callan. Their connection drives much of the narrative, with Callan delivering one of the standout performances of the night. His commanding presence and emotive moments perfectly capture the complexity of the Marquis of Headfort.

Rehearsal Photo Credit: Danny Kaan
The wider cast bring a strong sense of commitment to the production, helping to flesh out the world around Rosie. Charles Brunton is particularly notable, taking on the role of Lord Harrington while also contributing to the ensemble. It is within these ensemble moments where he truly stands out, making the most of every opportunity on stage, adding a constant sense of energy and presence to the performance.
Despite its semi-staged nature, Rosie never feels lacking in scale. The combination of a full live orchestra, a vocally talented cast and a sweeping score ensures the story retains a sense of grandeur. Beneath the period setting and dramatic storytelling, there is also a clear and timely message of love and acceptance that gives the show an added layer of relevance. This was particularly highlighted in the show’s closing number through lyrics like “Where love is love, and that’s enough”.
Rosie: A New Musical already shows significant promise, with a strong musical identity, compelling central performances and a story that clearly resonates with audiences. Despite the limitations of a semi-staged performance, the scale and ambition of the piece still shine through, suggesting there is far more to come from this production. With a full staging, this feels like a show that could develop into something truly memorable.
Cast on the Night:
Lucy Thomas – Rosie Boote
Will Callan – Geoffrey Taylour, Marquis of Headfort
Desmonda Cathabel – Lily Turner
Sally Ann Triplett - Lady Emily, Dowager Marchioness of Headfort
Madalena Alberto – Annie Boote
Charles Brunton – Lord Harrington/Ensemble
Connor Carson – James Walker/Ensemble
Alexander Evans – Lord Ashcroft/Ensemble
Rebecca Gilliland – Duchess of Westminster/Ensemble
Gavin James – George Edwardes/Ensemble
Brady Isaacs Pearce – Eleanour Richards/Ensemble
Jackie Pulford – Mother Superior/Ensemble
Lydia Sterling – Daisy Harris/Ensemble
Dylan Wood - Stanley Roberts/Ensemble
Helen Woolf – Sister Catherine/Ensemble
Santi Cohen – Young Rosie
