Real Name/Secret Identity:
Sil

Universe/Franchise:
Species

First Appearance:
Species (1995)

Abilities:
Superhuman strength and intelligence, accelerated reproduction, can transform into a living erotic/grotesque H.R. Giger sketch

Occupation:
Hot alien

Base of Operations:
Earth

Dirty Details Done Dirt Cheap:
The beautiful and extremely dangerous Sil is the greatest achievement and biggest mistake of the government program SETI (Search for Extra Terrestrial Intelligence). After we send out transmissions about Earth and its inhabitants into space, we receive back the blueprints of how to merge alien and human DNA. Like the curious idiots we are, we give it a shot, and the result is a gorgeous blonde supermodel in heat, ravenously searching for a mate so it can breed a million aliens and take over the planet. (That mate ends up being Alfred Molina, but that's a whole other story.) Sil is eventually destroyed, but since we are indeed curious idiots that rarely learn from our mistakes, she is cloned as another alien-human hybrid named Eve and given a sequel.