I'd go for flukeman from X-files or the Cybermen from the original Doctor Who. The cybermen are incredibly menacing, even in their 60s costumes the way they didn't move their mouths when they talked and their facial expression.
C.H.U.D. (1984) Species (1995) Natasha Henstridge was smoking hot but in her alien form Clash of the Titans - The Kraken (not the 1981 movie but the 2010) Anaconda (1997) Hotwater
Honerable mention: The giant RBS! https://www.youtube.com/watch?v=PgZZ_IlXzwU"]YouTube - The Angry Red Planet (1959) Trailer The first monster to scare the crap out of me when I was little!
^ definitely the scariest sci-fi creature in any film. I think Hector Hammond from Green Lantern is really fucking creepy though..
Not quite sci-fi but great choice! He was really creepy to me when I was little, but if the warrior kid could beat him, so could I =D What the fuck was that kid's name? The horse was Atreyu..
all freee todaayyy... https://www.youtube.com/watch?v=zUnhfvGdmmw"]YouTube - Child Catcher From Chitty Chitty Bang Bang the scariest monsters don't have fangs and slimey bits
For it’s time the Gremlin in Terror at 20,000 feet was pretty scary although the updated 1983 version was even more terrifying :2thumbsup: Hotwater
