Former Doctor Who stars Matt Smith and Billie Piper are both poised to return to the London stage.
Matt, who played the Doctor from 2010 to 2013, will return to the Royal Court in Unreachable, a new play by Anthony Neilson about a film director on an obsessive quest to capture the perfect light.
He has performed in two previous plays at the theatre.
Ideas the company are trying out for the production will be posted online throughout the rehearsal period to give audiences an insight into the process of devising the work.
Billie, who played Christopher Eccleston and David Tennant's companion Rose Tyler in the BBC sci-fi series, will star in Yerma at the Young Vic, a new telling of Federico Garcia Lorca's play written by Simon Stone.
Billie will play the title role of a woman whose inability to have a child tears her life apart.
She is an experienced stage actress who won acclaim for her roles in The Effect at the National Theatre and Treats at the Garrick. This will be her Young Vic debut.
Unreachable will run at the Royal Court from July 2 to August 6.
Yerma will run at the Young Vic from July 28 to September 24.