Nine movies in, assumptions start to pile up like a precarious Jenga tower that every ounce of originality’s been squeezed out of the lucrative “Alien” franchise Ridley Scott erected. Just burn that thought down.

With that in mind, here is your guide to who's who in the new, long-awaited FX series. Sydney Chandler leads "Alien: Earth" as Wendy, a young, terminally ill girl who becomes the world's first hybrid when she has her consciousness transferred into an adult,