Interview: Lucy Thomas on playing title role in ROSIE THE MUSICAL concert

After more than a decade in development, the highly anticipated new musical ROSIE is making its West End debut with a one-night, semi-staged performance this month. Set in Edwardian London, Rosie is based on the true story of Miss Rosie Boote, who was raised in an Irish convent but dreamed of starring in the West End. We spoke to Lucy Thomas who stars as Rosie to find out more.

How did you first become involved with ROSIE, and what has the development process been like?

I recorded my first Rosie song, ‘One Day’, when I was just 14 years old after Chris Broom, the writer of ROSIE The Musical, spotted me on The Voice Kids in 2018. After the show, we began working together, and I’ve had the privilege of watching ROSIE develop over the past eight years. It’s really special to still be part of the project and to see it finally come to life after so much hard work. I’ve always felt incredibly passionate about this musical, and in many ways, it feels like I’ve grown up alongside Rosie. It truly feels like a full-circle moment.

Can you tell us about the character of Rosie, and what drew you to them?

Rosie is a character I really relate to. She’s driven, ambitious and kind, and she isn’t afraid to dream big. She loves deeply and wholeheartedly. Rosie isn’t someone who gives up—she fights for what she believes in and stands up for what’s right. I see her as intelligent, brave and just genuinely lovely. I’m really enjoying playing her so far; it feels very authentic and natural to me. Her relationship with Lily is particularly special. Although the two girls are quite different, their friendship shows how Rosie connects with people from all walks of life. It really highlights her warm, genuine and welcoming nature.

What do you find most inspirational about the story?

I think one of the most inspiring aspects of the story is how clearly it shows what can happen when you truly set your mind to something and refuse to give up. It celebrates the power of love and hope, and reminds us how important it is to follow our dreams. Rosie also challenges social conventions, which makes her journey even more powerful. Because the story is based on real events, it highlights the strength and determination of a young, passionate girl with big dreams—and how someone like that can make a real impact on the world around them.

Does it feel different to portray a real historical figure rather than a fictional character?

Yes, it does feel different playing a real historical figure, because there’s a real sense of responsibility to portray Rosie as truthfully as possible and to honour the incredible woman she was. There’s definitely a certain pressure that comes with playing someone so influential. For me, it’s about doing justice to her story and representing her with the respect and care she deserves.

Is there anything you learnt from your time on The Voice Kids that still influences your performances now?

I learned a lot from being on The Voice Kids, especially as I was so young at the time. One piece of advice that has always stayed with me came from my vocal coach, who would often say, “Think of the bigger picture.” She reminded me that when one door closes, another opens, and that resilience is so important. That advice still influences me today. It taught me to stay present, enjoy the moment, and not get too caught up in the “what ifs.” Thinking this way helps me appreciate experiences while they’re happening. It’s easy to feel the pressure, but reminding myself to step back and see the bigger picture allows me to truly enjoy the incredible opportunities I’m lucky to have.

How do you hope audiences will feel after watching ROSIE?

Simply, I hope the audience leaves feeling inspired, hopeful, and fulfilled. I hope Miss Rosie Boote’s incredible story stays with them long after the performance, leaving a lasting sense of gratitude and admiration for her bravery. I also hope the show highlights the importance of love and friendship, and most importantly, that everyone has a truly wonderful time.

ROSIE plays at the Adelphi Theatre, London on 17 March, with further info here.