Why Species Never Lived Up to Its Terrifying Premise

Just over a week ago, the world of Hollywood was in mourning. Actor Michael Madsen, who would forever be linked to Reservoir Dogs, Kill Bill, and Donnie Brasco, among others, was killed in a car crash in the early hours of the morning. Though the Hollywood institution was remembered for his craggy visage, gravelly voice, and films that became instant fan favorites upon release, few obituaries have noted his appearances in odder films. One such was his role in the 1995 sci-fi thriller Species, in which he played a black ops mercenary tasked with hunting down a half-human, half-alien hybrid.

Species, which turns 30 this year, was a little bit of everything: a monster movie, a thriller, a slasher film, and even a not-so-subtle stab at bioethics. It was directed by Roger Donaldson (No Way Out, The Bounty), who wrote the screenplay with Mark Franco. Donaldson and Franco both commented that they’d been working on the script for around eight years before they sold it, having dreamed up the main concept and its main characters. Stars Madsen, Natasha Henstridge, Ben Kingsley, and Marg Helgenberger all signed on for the film, as well as a then-unknown Michelle Williams, who played Sil in her younger years.

Set in an America ruled by monsters and governed by an alien paranoia, the film tells the story of two scientists who splice human DNA with DNA sent from outer space by a previously unknown alien race. The result of their experiments is a creature that begins to grow rapidly, defying their expectations until the hybrid girl begins to kill to breed. In the U.S., no government agency or scientist wants to take responsibility for this human-alien hybrid, now grown to adulthood and on the prowl in the streets of Los Angeles.

Agent Preston Lennox, Played by Michael Madsen

To catch the killer and prevent her from conceiving, they hire Madsen’s Preston Lennox, a black ops mercenary and no-nonsense badass, to track her down. Lennox, in turn, assembles a ragtag team of other experts: Dr. Laura Baker, played by Marg Helgenberger, a molecular biologist who specializes in the same field of study as the recently deceased scientist who created the half-alien, and her ex-lover, Dr. Stephen Arden (Alfred Molina), who serves as the team’s resident anthropologist. Joining Lennox and the scientists is Dan Smithson, played by Forest Whitaker, an empath who can read the killer’s emotions and feelings.

Together, the team travels the country looking for the killer, trying to stay a step ahead of the killers as they hunt her down. They eventually make it to Los Angeles, where she’s found. Now fully-grown, the alien woman, played by Natasha Henstridge, sets to work on her true goal: creating more of her species through mating and breeding. She’s smart, adaptive, and merciless, killing anyone who gets in her way to pursue her goal. It’s the classic thriller plotline, this time with an alien twist.

A Monster Designed to Seduce—and Kill

Perhaps the most immediately striking element of Species was, of course, its creature design. The film’s half-human hybrid was created by none other than legendary surrealist artist H.R. Giger, perhaps best known to many as the guy who designed the Alien, the biomorphic xenomorph that haunted John Hurt and the rest of the crew of the Nostromo in Ridley Scott’s seminal Alien.

Giger was, in a word, enthralled by the film. “Sil was to be an aesthetic warrior, also sensual and deadly,” Giger once said of his work on the character. “In the end, she looks like a kind of venus flytrap.” The result is a vision of both erotic horror and science fiction, a blend of both sex and death. Giger has since said that the final design was a departure from what he and Donaldson originally agreed upon; he’d been enlisted on the project early on in pre-production, in fact, and created an initial design for what Sil would look like at three different points in her life.

According to Giger, the completed design for Sil was “a three-stage alien which would have transformed from one state to the other during the film.” The final version of the alien girl had to be adapted for budgetary reasons. Giger ended up culling the extra designs, using his original cocoon design to show the girl in transition to her full size, and a large, maternal alien body for the final sequence. Giger was not pleased with the result. The creature’s final design, he said, featured translucent skin that “looked like a glass body but with carbon inside.”

Giger became convinced that Species was too similar to Alien, his previous work, and he walked off the project in the final stages of production. He was specifically bothered by the “punching tongue” of Sil, as well as the final sequence of the creature giving birth to more of her kind, which he thought of as too similar to the “chestburster” sequence in Alien. It was for this reason, as well, that Giger was able to intervene on the set to have Sil killed by a bullet to the head instead of the film’s original plans of a flame-thrower and inferno.

A Slow Burn on the Slow Trail

While Species was by no means a critical darling, it’s easy to see why it became a staple for monster and creature feature fans in the years after its initial release. There’s a strange charm to the film’s campy dialogue and spotty character development. Ben Kingsley’s Fitch is an amoral mess of a character, and he has very little to do for most of the film, save for running from the silent killing machine in his laboratory. Forest Whitaker’s Dan Smithson is a brooding fellow whose main talent is for stating the obvious as Henstridge’s title character stabs, rapes, or otherwise murders people.

The dialogue is by turns bland, and its themes of bioethics, scientific research, and alien contact are lightly touched upon. One major inspiration for Feldman’s screenplay was, in fact, a nonfictional article by Arthur C. Clarke about the extreme unlikeliness that Earth would ever make contact with alien life. There’s an incredible infinitesimal chance that faster-than-light travel exists or would even be possible, which means there’s very little chance that aliens would ever visit Earth. Or what if, Feldman asked, extraterrestrials decided to visit Earth with blueprints that they could use to make organic life out of DNA from here on Earth?

The result was an exciting creature feature and cautionary tale all in one. It may never join the ranks of Alien or The Terminator, but it did earn its cult following. Between Henstridge’s alien performance, Giger’s monstrous design, and Madsen’s gritty mercenary performance, it’s a science fiction curiosity worth looking back on—particularly in 2025, 30 years on.