Atli was born in Iceland and raised in Norway. He is fluent in English, Icelandic and Norwegian. Atli trained at Mountview Academy of Theatre Arts graduating in 2005. Recent voice credits include British soldier Ed in two part radio drama 'Ástand' (Situation) for The Icelandic National Broadcasting Service.
Stage credits include 'Word:Play 3' (Theatre503), 'World at One' (King's Head Theatre), 'The Sitcom Trials' (Leicester Square Theatre), 'Peer Gynt' (Pleasance Theatre), 'Tosca', 'La Fanciulla del West' and 'Matilde di Shabran' (Royal Opera House).
Other credits include feature films 'Treacle Jr.', 'Made in Iceland' and 'Dramarama', 'Intel viral The World's Biggest Intel Chime' and drama-doc 'Outbreak Investigation: Return of the Speckled Monster' for National Geographic Channel.