In 'Thor,' that was my own hair. I grew it out. But I have naturally curly, blonde hair, so I'll never look like that. By the time I got to 'The Avengers,' I had come off two other films, which required me to have it very short. So I dyed it again and it was long enough to use a part of my hairline.

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).