Janie Dee (Follies, Stephen Sondheim's Old Friends, Comic Potential) has joined the cast of The Motive and the Cue, a new play by Harry Potter and the Cursed Child's Jack Thorne that will begin performances at London's National Theatre April 20.

Sam Mendes will direct the play, which will officially open in the Lyttelton May 2. Inspired by the making of John Gielgud’s Hamlet, as well as Letters from an Actor by William Redfield and John Gielgud Directs Richard Burton in Hamlet by Richard L. Sterne, the cast will also feature the previously reported Johnny Flynn as Richard Burton, Mark Gatiss as John Gielgud, and Tuppence Middleton as Elizabeth Taylor.

The ensemble will include Aaron Anthony, Tom Babbage, Allan Corduner, Elena Delia, Ryan Ellsworth, Phoebe Horn, Aysha Kala, Luke Norris, Huw Parmenter, David Ricardo-Pearce, David Tarkenter, Kate Tydman, Laurence Ubong Williams, and Michael Walters.

The Motive and the Cue focuses on Burton, who is newly married to Taylor and set to play the title role in an experimental new production of Hamlet under Gielgud’s direction. As rehearsals progress, two ages of theatre collide and the collaboration between actor and director soon threatens to unravel.

The production will also have set design by Es Devlin, costume design by Katrina Lindsay, lighting design by Jon Clark, music by composer Benjamin Kwasi Burrell, sound design by Paul Arditti, video design by Luke Halls, casting by Alastair Coomer and Naomi Downham, and associate direction by Zoé Ford Burnett. 

Performances will continue through July 15.