Jason Iain Flemyng is an English actor. He is known for his work with British filmmakers Guy Ritchie and Matthew Vaughn appearing in the Ritchie films Lock, Stock and Two Smoking Barrels (1998) and Snatch (2000), and appearing in Vaughn's films Layer Cake (2004), Kick-Ass (2010), and X-Men: First Class (2011).

Guy Stuart Ritchie is an English film director, producer and screenwriter. His work includes British gangster films, and the Sherlock Holmes films starring Robert Downey Jr.