Asa Maxwell Thornton Farr Butterfield is an English actor. He is known for playing the main character Bruno in the Holocaust film The Boy in the Striped Pyjamas (2008), the young Mordred in the hit BBC TV Series Merlin. Butterfield was nominated in the category "Most Promising Newcomer" of the 2008 British Independent Film Awards, but he lost the award to Dev Patel from Slumdog Millionaire. He was nominated for the NSPCC Award (Young British Performer of the Year) in the London Critics Circle Film Awards.
Butterfield first started acting at the age of 7 on Friday afternoons after school at the Young Actors' Theatre, in his hometown. Later, he secured minor roles in the 2006 television drama After Thomas and the 2007 film, Son of Rambow. In 2008 he had a guest role playing Donny in Ashes to Ashes. In that same year, aged 10, he played the lead role in The Boy in the Striped Pyjamas. He was on the first audition tape he received and he was the third hopeful he met in person.
Butterfield was born in Islington, London. He was born with the middle names "Maxwell Thornton",. Butterfield enjoys making and producing music, and released a mashup of the songs "Teenage Dirtbag" by Wheatus and "Making Plans For Nigel" by XTC in 2004