Bonnie made her debut on the West End stage at the tender age of seven in a musical adaptation of Gone with the Wind at the Theatre Royal, Drury Lane. The following year she played ‘Baby June’ in Gypsy opposite Angela Lansbury at the Piccadilly Theatre, London. She made such an impact that the producers took her to America with the show for a US national tour and a highly successful run at the Winter Gardens Theater on Broadway. For this performance, at the age of ten, Bonnie was nominated for a Drama Desk Award.

In 1981, Bonnie joined the original cast of Cats creating the role of Rumpleteaser at the New London Theatre (now the Gillian Lynne Theatre). She returned to the Theatre Royal, Drury Lane in The Pirates Of Penzance playing Kate and later playing Mabel on the national tour and season at the London Palladium. Other West End credits include the title role in Peter Pan, The Musical at the Aldwych Theatre; Sally in Me And My Girl at the Adelphi Theatre; Charity in Sweet Charity at the Victoria Palace Theatre; The Lady Of The Lake in Spamalot at the Pinter Theatre and the Playhouse Theatre; and Muriel Eubanks in Dirty Rotten Scoundrels at the Savoy Theatre.

UK tours include: 42nd Street; Charlie Girl; Oklahoma!; Guys and Dolls; Fosse; Spamalot; 9 to 5, The Musical and numerous Royal Variety Performances and Royal Galas. She headlined the US cast of Fosse on its British leg of the international tour; danced with Wayne Sleep in Hollywood and Broadway!; ice skated with Torvill and Dean on 3 tours of Dancing On Ice, Live; shared much laughter with comedienne and writer Sandi Toksvig on their hilarious show Short and Curly; and continues to present her one woman show in venues across the world.

In 2019, Bonnie performed her concert ‘An Evening With Bonnie Langford’ to celebrate the 120th Anniversary of Richmond Theatre. She also hosted ‘The Music Of The Night’ with the Royal Philharmonic Orchestra at the Royal Albert Hall.

In the United States, she recreated her portrayal of Roxie Hart in the musical Chicago at the Ambassadors Theatre on Broadway, a role she also played in London at both the Adelphi and Cambridge Theatres as well as on the US and Canadian tours. Bonnie has appeared at the famous Birdland jazz club and at 59E59 theatre in her show ‘Christmas in New York’.

2018 saw Bonnie return to the West End stage to play Dorothy Brock in the spectacular production of 42nd Street at the Theatre Royal, Drury Lane. Having appeared in the show on a UK tour in the 1990’s, she is the only actor to have played both the roles of the ingenue, Peggy Sawyer, and the diva, Dorothy Brock. Finally, Bonnie has just completed a sell out run at the Savoy Theatre, London playing Roz in Dolly Parton’s 9 to 5, The Musical.