As previously announced, Olivier Award-winner Nigel Harman will play X Factor supremo Simon, with Cynthia Erivo and Alan Morrissey as lovestruck contestants Chenice and Max.
Joining Nigel on the judging panel will be Ashley Knight as the ever-positive boyband manager Louis and Victoria Elliot as pop queen Jordy. Simon Bailey (Phantom of the Opera, Les Miserables) will play the overly affectionate X Factor host Liam O'Deary, with Billy Carter (Someone Who'll Watch Over Me) as Executive Producer and Simon's right hand man, Gerard Smalls. Simon Lipkin (Avenue Q, Rock of Ages) plays Chenice's faithful canine sidekick Barlow and Joe Speare (The Color Purple, To Kill A Mocking Bird) is her iron-lung bound Grandad.
Along with Chenice and Max, the I Can't Sing hopefuls include Katy Secombe (Les Miserables, Mamma Mia) as supermarket checkout chanteuse Brenda, Charlie Baker as The Hunchback and Shaun Smith and Rowen Hawkins as Irish pop duo Alterboyz.
The I Can't Sing! cast is completed by Luke Baker, Adam J Bernard, Jenna Boyd, Cyrus Brandon, Gabrielle Brooks, Scarlette Douglas, Kelly Ewins, Scott Garnham, Cherelle Jay, Faisal Khodaukus, Jaye Marshall, Brian McCann, Max Parker, Joseph Prouse, Steven Serlin, Kirstie Skivington, Philippa Stefani, Gary Trainor and Alex Young.
I Can't Sing!, which is scripted by comedian Harry Hill and features music and lyrics by Steve Brown, premieres at the London Palladium on 26 March 2014 (previews from 27 February).