Hamblett began his career on stage in the Royal Shakespeare Company's The Histories Cycle, directed by Michael Boyd.
[1] His stage work includes a production of The Tempest alongside Ralph Feinnes and Trevor Nunn in 2011,[2] and Brecht's The Resistible Rise of Arturo Ui at the Duchess Theatre, London in 2013.
[8] That year, he made a guest appearance as a French interpreter on BBC One sitcom Ghosts.
[10] That year, he portrayed a version of writer Laurie Lee on stage in a touring production of the play Red Sky at Sunrise, alongside Anton Lesser.
[14][15] He appears alongside Christoph Waltz in Simon West action comedy film Old Guy.