Heath Ledger's performance in 'The Dark Knight' quite simply changed the game. He raised the bar not just for actors in superhero films, but young actors everywhere; for me. His performance was dark, anarchic, dizzying, free, and totally, thrillingly, dangerous.

He trained at the Royal Academy of Dramatic Art (RADA) and he rose to prominence through a number of TV roles and more recently major film roles. His Donmar Warehouse credits include Cassio in Michael Grandage's production of Shakespeare's Othello alongside Chiwetel Ejiofor and Ewan McGregor to critical acclaim and later Lvov in their West End revival of Chekhov's Ivanov. He reprised his role as the supervillain Loki in the 2012 movie The Avengers.

He played author F. He trained at the Royal Academy of Dramatic Art (RADA) and he rose to prominence through a number of TV roles and more recently major film roles. Scott Fitzgerald in the Woody Allen film Midnight in Paris (2011).