Alice Morgan

She met Luther after the murder of both of her parents, whom she was suspected but never proven to have killed. In Luther, she found a worthy foe and a great friend. Before, Alice had seen human existence as insignificant compared to the universe, with its vast galaxies and black holes. But when her philosophy came into direct conflict with Luther's belief system, she discovered what it is to care for someone else. Still volatile at times, cold and unemotional at others, she is Luther's greatest ally, and greatest temptation.

Ruth Wilson burst onto the scene in the title role in the landmark BBC adaptation of Jane Eyre, for which she was nominated for a BAFTA and a Golden Globe. A favourite of the auteur Stephen Poliakoff, who cast her in his films Capturing Mary and A Real Summer, she also received critical acclaim for her performance in the BBC's Small Island in late 2009. Her theatre work includes The Philistines at the Royal National Theatre, Through A Glass Darkly at the Almeida Theatre and her portrayal of Stella in A Streetcar Named Desire at The Donmar Warehouse, for which she received The Laurence Olivier Award for Best Supporting Actress. In 2011, Ruth will star as the title role of Anna Christie in the Donmar Warehouse's production.

Watch a short film starring Ruth Wilson: BBC Film Network - Get Off My Land.