Leo Gregory (born 22 November 1978) is a British film and television actor. Notable roles in television and film include EastEnders as Mikey, Samson and Delilah (1996), Octane (2003), Stoned (2005), Green Street (2005), The Mark of Cain (2008), Wild Bill (2011), The Hooligan Factory (2014), and Once Upon a Time in London (2019).
Career In 1996, Gregory starred in the television miniseries Samson and Delilah (1996) in a cast which included Elizabeth Hurley, Michael Gambon, Dennis Hopper, and Diana Rigg. In 2000, he appeared on stage in the play Drag On, at the Royal Court theatre. He played lead role in the Dominic Savage directed television film When I Was 12, which had its big screen premiere at the 2001 Edinburgh Film Festival, and went on to win BAFTA Award for Best Single Drama at the 2002 British Academy Television Awards.
In 2002, Gregory played Sam, a lead character in the BBC British young offenders television film Out of Control, alongside Tazmin Outhwaite. The film was the first BBC One drama to win the Michael Powell Award for Best British Feature Film at the Edinburgh International Film Festival. In 2003, he starred in the movie Octane, with Jonathan Rhys Myers and Madeleine Stowe.
In 2005, Gregory played the lead role as one of the founding members of The Rolling Stones, guitarist Brian Jones, in the Stephen Woolley directed film Stoned, alongside Paddy Considine, David Morrissey, and Ben Whishaw. The same year, he played 'bovver in the football hooligan film Green Street, alongside Elijah Wood.
In 2007, Gregory played Lance corporal Quealy in The Mark of Cain, which won BAFTA Award for Best Single Drama in 2008.
In 2011, he also appeared in Wild Bill, in a cast which included Charlie Creed-Miles, Will Poulter, Neil Maskell, Liz White, Iwan Rheon, Olivia Williams, Jaime Winstone, Andy Serkis, and Sean Pertwee.
In 2014, he played Jorund in Northmen: A Viking Saga. and was Slasher in The Hooligan Factory. In 2019, he starred in the British period gangster film Once Upon a Time in London, alongside Holly Earl and Terry Stone.
Filmography Feature film Year Title Role Notes 2000 Aberdeen Young Man 2001 Fallen Dreams Rob 2003 Octane Joyrider 2004 Suzie Gold Darren 2005 Green Street Bovver 2005 Stoned Brian Jones 2006 Tristan + Isolde Simon 2006 Perfect Creature Brother Edgar 2007 The Mark of Cain Lance Corporal Quealey 2008 Daylight Robbery Matty 2008 Act of Grace Dezzie 2008 Cass Freeman 2008 Reverb Alex 2009 Bali Brothers Eddie James 2009 Goal III: Taking on the World Charlie Braithwaite 2010 The Big I Am Skinner 2011 Big Fat Gypsy Gangster Danny 2011 Wild Bill Terry 2012 Hamilton: In the Interest of the Nation Miller 2012 Payback Season Andy Sullivan 2012 One in the Chamber Bobby Suverov 2013 All Things to All Men Dixon 2014 Top Dog Billy Evans 2014 The Hooligan Factory Slasher 2014 The Ninth Cloud Brett 2014 Northmen: A Viking Saga Jorund 2017 Dawning of the Dead Agent Proteus 2019 Once Upon a Time in London Billy Hill 2019 Avengement Mo 2023 Boudica: Queen of War Ciaran 2026 Rise of the Footsoldier: Retribution Captain Sergio
Short film Year Title Role Notes 1998 Things We Do for Love Boy 2000 Pietà Jacob 2017 Nadia John 2019 Queen of Diamonds The Belgian 2019 Birds with No Legs Harry 2026 Echoes Robert
Television Year Title Role Notes1992 Jewels Julian (age 15) 2 episodes1992 The Upper Hand Henry Episode: "Summoned to the Head"1996 Samson and Delilah Young Jehiel 2 episodes1997 McCallum Paul Episode: "Dead But Still Breathing"1998 The Bill Mick Hempstead Episode: "Racer"2000 Nature Boy Funfair Attendant Episode: #1.42001 As If Toby Jarvis Episode: "Jamie's POV"2001 The Glass Lad Episode: #1.32001 When I Was 12 Paul TV film2002 The Jury Ally Maher 6 episodes 2002 EastEnders Mikey Smith 2 episodes2002 Out of Control Sam TV film 2002 Menace Dennis Naylor 2 episodes2002 Bodily Harm First Trader Episode: #1.12006 Cracker Wallet Thief Episode: "Nine Eleven"2010 Thorne Sean Bracher 3 episodes2012 Above Suspicion Lester James 2 episodes2012 Silent Witness Daniel Kessler 2 episodes2012 Mrs Biggs Eric Flower 2 episodes2014 Law & Order: UK Warren Lennox Episode: "Repeat to Fade"2015 Foyle's War Damian White Episode: "Elise"2015 The Musketeers Marmion Episode: "Through a Glass Darkly"2015 The Team Mikey Jones 2 episodes2015 Strike Back: Legacy Mason 4 episodes2019 London Kills Damon Potter Episode: "The Ultimate Price"2019 Plebs Paulus Episode: "The Hooligans"2023 Screw Tyler Reeks 4 episodes
Video game Year Title Role Notes2015 Need for Speed Travis Voice
Music video Year Song Name Artist2006 "Littlest Things" Lily Allen2012 "Sweet Nothing" Calvin Harris feat. Florence Welch2025 "Paranoid" Local
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