EXCLUSIVE–  Jodie Comer has joined the cast of Steven, the Mark Gill-directed biopic of iconic British singer Morrissey. This film marks Comer’s big screen debut, following on from her eye-catching turn as the 22-year-old mistress/homewrecker in BBC’s ratings phenomenon Doctor FosterShe joins the previously announced Jack Lowden and Jessica Brown Findlay in the film.

The news comes on the heels of Comer landing the plum lead role The White Princess, the sequel to Starz’ War of the Roses historical TV drama The White Queen.

Gill has written the script with William Thacker, his collaborator on the 2014 Oscar-nominated short The Voorman Problem. HanWay is handling sales on the project which starts principal photography in April. Entertainment One has taken UK rights.

Comer most recently starred in Thirteen, the BBC Three/BBC America five-part drama about a young woman working her way back into society after being abducted. Comer played Ivy Moxham, who escaped from a cellar after thirteen years. The series explored how to pick up the threads of a life half-lived and how to survive as a family under great pressure.

Comer also established herself as one to watch with her performances in My Mad Fat Diary and most memorably in BBC One’s hugely successful series, Doctor Foster, where she was revealed to have been having a three-year-affair with the husband of her parents’ friend Doctor Foster, played by Suranne Jones. The series 1 finale drew in almost 10 million viewers in the UK.

Comer is repped by Independent Talent Group in the UK and ICM Partners in the U.S.