David Kessler and his buddy Jack Goodman left New York City to backpack in Europe. They get attacked by a wolf, and Jack dies. After weeks in the hospital, David tragically learns that he's become a werewolf and that he's been committing murders unintentionally.
Sil - Natasha Henstridge
Species is a true alien horror story where humans are the prey. The aliens weaponize themselves in order to mate with and kill humans. Sil, played by Natasha Henstridge, gets away from the United States government and begins her rampage.
Henstridge plays her human self and gets dressed up in some intense alien attire. A lot of her get-up had to do with CGI, but she still had to wear some key components that they couldn't recreate back in 1995 ad 1998.
The Gill-Man - Ricou Browning
The Creature From the Black Lagoon is a classic black and white horror film from 1954. Obviously, this film had no "special" FX since it was still so early on in movie history. The suit was sculpted entirely by hand, which completely disguised Ricou Browning inside of it.