Species II is a 1998 American science fiction horror thriller film directed by Peter Medak. The film is a sequel to Species (1995) and the second installment in the Species series. The film stars Michael Madsen, Natasha Henstridge, Marg Helgenberger, Mykelti Williamson, George Dzundza, James Cromwell and Justin Lazard. In addition to Madsen and Helgenberger reprising their roles, Henstridge also returned for the sequel as a new character. The plot has Patrick Ross, the astronaut son of a senator, being infected by an extraterrestrial organism during a mission to Mars and causing the deaths of many women upon his return. To stop him, the scientists who created the human-extraterrestrial hybrid Sil in the original Species try using a more docile clone of hers, Eve.