Shek Wing-cheung, better known by his stage name Shih Kien, Sek Kin, Sek Gin or Shek Kin, was a Hong Kong actor and martial artist. Shih is best known for playing antagonists and villains in several early Hong Kong wuxia and martial arts films that dated back to the black-and-white period, and is most familiar to Western audiences for his portrayal of the primary villain, Han, in the 1973 martial arts film Enter the Dragon, which starred Bruce Lee.

Enter the Dragon is a 1973 martial arts film directed by Robert Clouse and written by Michael Allin. The film, which stars Bruce Lee, John Saxon and Jim Kelly, was Lee's final completed film appearance before his death on 20 July 1973 at the age of 32. An American-Hong Kong co-production, the film was premiered in Los Angeles on 19 August 1973, one month after Lee's death.