Samuel Barnett is an English actor. He has performed on stage, film, television and radio and achieved recognition for his work on the stage and film versions of The History Boys by Alan Bennett. His television performances include roles in the BBC comedy Twenty Twelve and in the Showtime drama Penny Dreadful. He played the lead role of Dirk Gently in Dirk Gently's Holistic Detective Agency, the 2016 BBC America adaptation of the book series by Douglas Adams.
Barnett at the 2017 San Diego Comic-Con
The History Boys is a play by British playwright Alan Bennett. The play premiered at the Royal National Theatre in London on 18 May 2004. Its Broadway debut was on 23 April 2006 at the Broadhurst Theatre where 185 performances were staged before it closed on 1 October 2006.
Original (2004) Royal National Theatre cast
A 2007 production of The History Boys at The Doon School, India; a scene featuring Irwin (played by Vivaan Shah, then a student) and Posner
The Headmaster, in a 2014 production by OVO theatre company, St Albans, UK