Mamma Mia! The Party announces new casting

Mamma Mia! The Party has revealed new casting.

From 19 June, Antony Costa will return to the show as Nikos, appearing at the immersive ABBA taverna until 4 September 2025.

Also joining the show this summer will be Marianne Benedict (Matilda) as Kate (at certain performances), Paola Fareri (The Lion King) as Konstantina, Natalie Winsor (A Midsummer Night’s Dream, UK tour) as Debbie, Rebecca Stenhouse (Grease, UK tour) as Nina, Cameron Gabriel (Becoming Nancy, Birmingham Rep) as Ruben/Swing, Stuart MacIver (Wicked) as Robin/Swing, and Nathan Shaw (White Rose) as Carlos/Swing.

From 19 June, they join existing cast members Kimberly Powell as Kate (at certain performances), Henryk Firth as Adam, Oscar Balmaseda as Host/Fernando, Dawn Spence as Grandma, Allie Ho Chee (at certain performances) and Rosie Rowlands (at certain performances) as Bella, Kelly Aaron as Sue/Swing, Claudia Bradley as Loretta/Swing, Deschenes Graham as Joyce/Swing, along with the musicians John Donovan, Flo Blue, Luke Higgins, Luke Roberts and Steve Rushton.

The show, laden with ABBA hits with a book by Sandi Toksvig, is co-directed and choreographed by Stacey Haynes and Roine Söderlundh, with set designed by Bengt Fröderberg, lighting designed by Patrick Woodroffe, sound designed by Gareth Owen, costumes designed by Annsofi Nyberg, music supervision by Robin Svensson and casting by David Grindrod for Grindrod Burton Casting.

Mamma Mia! The Party is booking at the O2 in London until 4 January 2026.