Writer
Chris Brancato was working with
MGM on
The Outer Limits, and knew the studio was interested in making a follow-up to
Species. He pitched an idea to executive Greg Foster where this time two hybrid alien women would strike. Foster liked it, but once Brancato went to
Species producer
Frank Mancuso Jr., he asked to "approach this from a different angle, so that we don't have a tired retread of the original, as sequels often are". With that in mind, Brancato took inspiration from
The Manchurian Candidate, where "somebody on a mission comes back, apparently a hero, but actually with some terrible demon inside", and as "the notion of a grand, unexplored place was the planet
Mars", he made, Patrick Ross, the first astronaut on Mars – as according to
NASA scientists consulted by Brancato, human
exploration of Mars was "a possibility – just a very expensive one" – be infected by alien DNA. Mancuso approved the idea, and thus Brancato explored how this new villain was one "for whom we can briefly feel a strange,
Wolf Man-like sympathy – he's not responsible for having been turned into a monster" and had him face an alien woman similar to Sil, raising the doubt on whether they would battle or mate. As
Natasha Henstridge was unconfirmed to return, Brancato wrote the new female, Eve, as if it was "either Natasha or a similarly beautiful woman". Henstridge still liked the script enough and the idea of working with director
Peter Medak to sign for the sequel. Brancato decided to bring back two of the surviving characters from
Species,
Michael Madsen's Press Lennox and
Marg Helgenberger's Dr. Laura Baker feeling they "were essential to bring the audience back in", but knowing
Forest Whitaker was probably too busy to return as Dan Smithson, he wrote a similar African American character, Dennis Gamble, eventually portrayed by
Mykelti Williamson. Patrick's alien form for copulation is bipedal, humanoid, and male version of Eve's, while Patrick's alien form for combat (so-called "Fighting Patrick") is quadrupedal, bigger, and more "brutish" in appearance than Eve. His second stage appearance is also similar to the
Xenomorphs of the
Alien films; both were designed with input from
H. R. Giger. ==Release==