In 2002, whilst a student at the Guildhall School of Music And Drama, Lex took time out from studying to take the role of Mikhail Kornilov in the Harrison Ford-fronted “K-19: The Widowmaker”, directed by Kathryn Bigelow.
Following his graduation, Lex appeared in low-budget British horror film “Nine Lives” (2002) opposite Paris Hilton. In the same year, on stage, he played the King of France in Jonathan Kent’s “King Lear” at the Almeida Theatre. Lex then went on to play Romeo in Indhu Rubasingham’s production of “Romeo and Juliet” at the Festival Theatre, Chichester, opposite Emily Blunt as Juliet, before appearing as Laertes in Calixto Bieito’s “Hamlet” at the Birmingham Rep and the Edinburgh and Dublin Festivals.
In 2004, Lex returned to the big screen to play John Tracy in the live action feature version of “Thunderbirds”.
A succession of roles soon followed, with Lex starring in the Granada TV thriller “Beneath the Skin” and on the big screen as Tyro in the fantasy horror “Minotaur”.
Between 2006 and 2008 Lex joined the Royal Shakespeare Company’s ensemble cast for the Histories Cycle, a move which led to Lex being nominated for Outstanding Newcomer in the London Evening Standard Theatre Awards 2008 for his performance as Hotspur in Henry IV part 1.
In 2009 Lex returned to TV and film work, and was cast in the role of Jamie Cartwright the new “Minder” for Channel 5 alongside Shane Ritchie, a performance that was to land him a Cult TV Award.
Since 2010, Lex has performed constantly on both screen and stage. He has appeared in “Captain America: The First Avenger”, “Holby City” and “Emulsion” and in theatres with roles in “Death of a Salesman”, “The Deep Blue Sea” and “Hedda Gabler”.
In 2012, Lex was cast in the BBC drama series “Hunted” as ex Royal Marine Ian Fowkes and as Lenny in ITV’s “The Poison Tree”.
At the end of 2012 it was announced that Lex had been cast in the second of four feature length Endeavour Morse films being made for ITV, a film to be directed by fellow Heroes Centre Ambassador Tom Vaughan.