Xenomorph

The Xenomorphs (AKA Aliens) are endoparasitoid extraterrestrial species that are one of Thomas and Twilight's toughest, and baddest enemies.

Trivia

 * Thomas, Twilight, and their friends will first encounter an Xenomorph in Thomas and Twilight Sparkle's Adventures of Alien.
 * Thomas, Twilight, and their friends will soon face more of them in Thomas and Twilight Sparkle's Adventures of Aliens.
 * Thomas, Twilight, and their friends will soon encounter another one in Thomas and Twilight Sparkle's Adventures of Alien 3.
 * Thomas, Twilight, and their friends will face even more of them in Thomas and Twilight Sparkle's Adventures of Alien: Resurrection.
 * Thomas, Twilight, and their friends will make their final battle with the Xenomorphs in Thomas and Twilight Sparkle's Adventures of Alien vs. Predator and Thomas and Twilight Sparkle's Adventures of Aliens vs. Predator: Requiem.
 * Ed, Edd, n Eddy and their friends will first encounter an Xenomorph in Ed, Edd, n Eddy's Ed-ventures of Alien.
 * Ed, Edd, n Eddy and their friends will soon face more of them in Ed, Edd, n Eddy's Ed-ventures of Aliens.
 * Ed, Edd, n Eddy and their friends will soon encounter another one in Ed, Edd, n Eddy's Ed-ventures of Alien 3.
 * Ed, Edd, n Eddy and their friends will face even more of them in Ed, Edd, n Eddy's Ed-ventures of Alien: Resurrection.
 * Ed, Edd, n Eddy, and their friends will face the Xenomorphs again, along with the help from the Predator in Ed, Edd, n Eddy's Ed-ventures of Alien vs. Predator.