3. Leonard Betts
The X-Files may have been a show about aliens, but it was the one-off monsters and mutants that left the most lasting impression.
20. Orell Peattie
19. Soul Eater
18. Hallucinogenic Fungus
17. Greg Pincus
16. Bark Creatures
15.Parasitic Slug
14. Phyllis H. Paddock
13. Rob Roberts
12. Leonard
11. Anthony Tipet
10. Virgil Incanto
9. Beggar Man
8. Eve 9 and Eve 10
7. Chinga
6. Flukeman
5. Donnie Pfaster
4. Robert Patrick Modell
2. Eugene Victor Tooms
1. The Peacock Family