Alfie Clarke (born 18 November 2007) is an English teen actor, who has appeared as Arthur Thomas in Emmerdale since 22 October 2009.
Clarke was born in Leeds, West Yorkshire, but lives in Huddersfield, West Yorkshire with his mum Fiona, dad Paul and his younger brother and sister. Clarke attends the Rebel Theatre School in Huddersfield. In May 2017, Clarke raised over ã5,000 for the Alzheimer's Society by swimming 46 lengths, both over his target, during a dementia storyline in Emmerdale involving Clarke's on-screen father Ashley Thomas, played by John Middleton.