Sam graduated from the Royal Scottish Academy of Music and Drama in 2003. He was nominated for a 2003 Laurence Olivier Award (Most Promising Performance) for Outlying Islands at the Royal Court Theatre Upstairs.
Sam has appeared in various TV programmes including: A Very British Sex Scandal (Channel 4), Any Human Heart (Film4), Midsomer Murders (ITV) and as a regular character in BBC Soaps River City and Doctors.
His film leads include: Young Alexander The Great (Ilya Salkind Company) and Emulsion (White Lantern Films), while theatre credits include: Plague Over England (Duchess, West End), MacBeth (Nottingham, Edinburgh Lyceum), Romeo And Juliet (Dundee Rep) and Hamlet (Citizens Glasgow).
After being defeated by Thor, Loki ended up on planet earth, and began to cause chaos along with his chitauri army, and to stop Loki, Nick Fury united Captain America, Iron Man, Hulk, Thor, Hawkeye and Black Widow and created the Avengers.