The Alien series is renowned for its imaginatively horrific beings, and Alien: Earth is no different. It brings back some infamous creatures from earlier films while also presenting new, equally disturbing entities.

In the first episode, we discover that there are five specimens on board the doomed Weyland-Yutani USCSS Maginot spacecraft, which crashes back to our planet. Who are these aliens, and what initial information do we possess about them?

1. Xenomorph

If you’ve watched Alien, you’re acquainted with this being. The primary nemesis of the franchise, the Xenomorph, undergoes several stages in its life cycle: beginning as a Facehugger that grips a victim’s face, implanting an embryo within them, then emerging as a Chestburster, and ultimately maturing into the full-grown alien that hunted Ripley and the Nostromo crew in the 1979 film.

2. Ticks

These unpleasant bloated creatures show up in episode 1, tunneling into a deceased rat within the Maginot’s laboratory. They subsequently assault the Prodigy soldiers restrained by head of security Morrow after the spaceship crashes on Earth. They latch onto a vein and draw blood similarly to earthly ticks.

3. Flies

Not much is currently known about these, but a flying variant of anything from the Alien mythology can’t bode well. We can only hope they do not escape their confines.

4. Plant pods

In episode 2, the hybrids discover a large plant pod suspended from the ceiling of the Maginot. “It appears to be plant life, but it might be animal life,” remarks Kirsh, examining the specimen. The petals unfold, revealing a stamen on a tentacle that investigates Tootles. Gross.

5. T. Ocellus

This eight-legged terror makes its appearance in episode 2, burrowing into the eye of the Maginot’s cat and reanimating it before launching an attack on the hybrids. A computer terminal indicates it possesses a smooth scolex with ocular irises and tentacles that can dislodge eyes and seize control of the brain’s pathways. Additional research is required to gauge its intellect, although it demonstrates notable problem-solving skills.

We will revise this article as we gather further insights about these specimens…

Alien: Earth debuts on Aug. 12 at 8 p.m. ET on Hulu and FX with two episodes, followed by weekly releases on Tuesdays.