10. The M-113 Creature
This miserable looking creeper earned a spot on our rundown because of being in the perfect spot at the perfect time. In “The Man Trap” – the first Trek episode transmitted on 8th September, 1966 – the Enterprise visits the ruined planet numbered M-113. On doing so, it loses a few members under secretive circumstances. The “thing” behind all this is this shape-shifting beast, the remnant of a dying breed, which has been murdering individuals to sustain its salt yearnings. There were many other scarier enemieshowever; we’ll never forget the M-113 Creature as this was the first.