Aliens (The Faculty)

The Aliens are the main antagonists of the 1998 Robert Rodriguez horror film The Faculty, especially their Queen.

Description
The Aliens are aquatic creatures, although they are able to live out of water if they hydrate regularly. Much like insects, they have a Queen and are connected telepathically to her, meaning that if she dies, all the other aliens die too.

Appearance
The Aliens look like small fishes or tadpoles, but they also possess tentacles. They have sorts of mandibles at their head and a mouth filled with sharp teeth.

The Queen is much bigger than his progeny, and a lot more monstrous.

Powers and Abilities
Their most notable ability is to control human by entering into their ears. When they control humans, they apparently conserved their memories but their personality changed completely (for exemple, a shy and inhibited person become more outgoing and outspoken, and a brash and domineering person become more understanding and compassionate).

The Aliens are also able to duplicate themselves in an unlimited way, and they possess limited shapeshifting abilities.

They are also practically immortals since they can survive even if they are cut into pieces. Even in human hosts they possess impressive regenerative powers, they are able to re-attach the host's limbs if they are cut off and can also survive to bullets and decapitations.

In addition, the Aliens are excellent swimmers.

The Queens are much more powerful than the other Aliens. They are able to give birth to many Aliens simultaneously and they possess greater shapeshifting abilities, they can even change their size and turn into human. The Queen also have colossal strenght.

Weaknesses
The Aliens can't survive without water, therefore they constantly need to hydrate when they control humans. If their host is too old or ill, he eventually dies from dehydration. But their more notable weaknesses are the diuretic drugs, which are lethal for them.

History
The Aliens are native to a planet composed entirely of oceans. After their planet started to die, their Queen decided to go to Earth and to take control of it.

The Queen arrives in a small town in Ohio called Herrington and begins by infected the Coach of the local High School, which later infects the rest of his colleagues. During the following days, the professors infect all the students, then every people in town. They also try to infect people from other towns during a match.

However, a group of students not infected manages to kill the Queen with a diuretic drug, which also kills the rest of the Aliens.