4. Roger Allam
Although he is more known in the acting community for his stage career (notably he played Javert in Les Miserables), Roger Allam has recently become one of those recognisable faces that pops up here and there, never the lead but providing great support and making an impact all his own.
What You May Know Him From: The film role which probably first brought him to a lot of peoples attention was as the venom-spitting TV host Lewis Prothero in V for Vendetta. He also starred as owner of the racing conglomerate in Speed Racer, the British Prime Minister in Pirates of the Caribbean: On Stranger Tides and frustrated author Nicholas in Tamara Drewe (shown above). He also portrayed two real-life people - one in The Iron Lady, where he played Gordon Reece, and one in The Queen, where he portrayed Robin Janvrin, the Queens former Private Secretary. On TV hes starred in the likes of Game of Thrones, Ashes to Ashes and The Thick of It.