Disney's Aladdin when it opens at the Prince Edward Theatre on June 9th next summer (previews from May 27). They would join already confirmed Broadway cast member Trevor Dion Nicholas, making his London stage debut as the Genie.
Ewen is a former Sugababe who is currently starring as Vanessa in the smash hit In the Heights at the King's Cross Theatre. She made her professional theatre debut as young 'Nala' in the The Lion King.
John-Wilson played 'Benigno Aquino' in David Byrne and Fatboy Slim's Here Lies Love at the National Theatre last year and appeared in From Here to Eternity at the Shaftesbury.