Robert Boulter is an English film, television and theatre actor. He had a guest-starring role on the television series The Bill in 2000. This was followed by a starring role in the play Herons written by Simon Stephens, which was performed in 2001 at the Royal Court Theatre. He had a guest role in the television series Judge John Deed in 2002. In 2004 Boulter landed a role as "Craig" in the episode "Teddy's Story" of the television series The Long Firm. He was cast in the 2005 he played Darren in the world premiere of the Philip Ridley play Mercury Fur, which was performed at the Drum Theatre in Plymouth and the Menier Chocolate Factory in London.

In 2006, Boulter starred a in the play Citizenship written by Mark Ravenhill. He appeared on a 2006 episode of the television series, Doctors, followed by a role in the 2007 theatre production of How to Curse directed by Josie Rourke. How to Curse was performed at Bush Theatre in the London Borough of Hammersmith and Fulham. Boulter starred in two films in 2008, Daylight Robbery by filmmaker Paris Leonti, and Donkey Punch directed by Olly Blackburn. In May 2008, Boulter made a guest appearance on a two-part episode arc of the television series Waking the Dead, followed by an appearance on the television series Survivors in November 2008. He had a recurring role in ten episodes of the television series Casualty in 2010, as "Kieron Fletcher". Boulter starred in the 2011 film Mercenaries directed by Paris Leonti.