Greenhalgh participated in the 2007 World Indoor Lacrosse Championships, representing Scotland (Greenhalgh has dual citizenship through his mother).
Sean Connery | Sean Combs | Sean Penn | Sean McKeown | Sean Hannity | The Sean Hannity Show | Sean Paul | Sean Bean | Sean Parker | Sean Lennon | Sean Kingston | Sean Astin | Jay Sean | Sean Pertwee | Sean O'Keefe | Sean Long | Sean S. Cunningham | Sean Price | Sean Patrick Thomas | Sean Fagan | Big Sean | Sean Young | Sean Parnell | Sean Harris | Seán T. O'Kelly | Sean Rafferty | Sean O'Brien | Sean M. Carroll | Seán Keating | Sean Hall |
In 2009 he played the lead in the true story of Sean Greenhalgh in The Antiques' Rogue Show for BBC2 with Liz Smith and Peter Vaughn, The Deacon in a film adaptation of Anton Checkhov's short story The Duel and featured in Canoe Man, a 2010 TV drama based on the John Darwin disappearance case.