Who is Cersei Lannister

Queen Regent of the Seven Kingdoms, Cersei is fiercely protective of her three children. Even before she was married to Robert Baratheon, she was involved in a relationship with her twin brother, Jaime. Like her father, Cersei is interested in maintaining her position of power.

Lena Headey previously played the title role in the Fox Network television series 'The Sarah Connor Chronicles,' which continues the saga of 'The Terminator' movies, with Headey taking over the part made famous by Linda Hamilton.

Headey's recent film credits include 'Tell Tale' opposite Josh Lucas and Brian Cox; the psychological horror film 'The Brøken,' directed by Sean Ellis; and 'The Red Baron,' in which she stars as the love interest of Germany's famed World War I flying ace, Baron Von Richthofen opposite Matthias Schweighöfer and Joseph Fiennes. She also starred in the action drama 'The Shooter,' with Wesley Snipes.

In 2006, Headey showcased her talents in three different features: the horror thriller 'The Cave'; the fantasy adventure 'The Brothers Grimm,' in which she starred with Matt Damon and Heath Ledger; and the British romantic comedy 'Imagine Me & You,' with Piper Perabo and Matthew Goode.

Headey made her feature film debut in 1992's 'Waterland,' playing the younger version of Jeremy Irons' wife. She was also seen that year in the BBC television movie 'The Summer House.' In 1993, Headey appeared in the period drama 'Century' and the award-winning Merchant-Ivory film 'The Remains of the Day.'

Her first leading role came in the live-action version of Rudyard Kipling's 'The Jungle Book,' and she continued to star in such independent films as 'Mrs. Dalloway,' 'Face,' 'Onegin,' 'Gossip,' 'Possession,' 'Ripley's Game' and 'The Actors.'

On television, Headey has starred in a wide range of longform projects, all over the world. Her credits include the BAFTA-nominated 'The Long Firm,' HBO's 'The Gathering Storm,' 'Merlin,' 'Loved Up' and 'Band of Gold.'