Really? The Sea Devils scared you? I mean, admittedly seeing them come up out of the water is kinda creepy, but why'd they scare you?
I think it's possible that they and/or the Silurians could come back at some point. The new series does tend to mine the past for good monsters. Plus, it'd be interesting to see a modern take on them. Not sure if they'd go more CGI or practical effects, though.
Oh, and I hope they upgrade their weaponry...that was always a bit disappointing about the originals.
Aye, Sea Devils were very scary to this 6-year-old too.
Actually I forgot the scariest one for me. That Anubis jackal-headed thing - Sutekh! - from the end of Pyramids of Mars. I used to have a recurring nightmare about that thing gliding toward me over a field at the back of our house.
Aye, Morbius for me too. Oddly enough I was watching the Sea Devils the other day and really enjoyed the Master watching a programme about 'a rather interesting extra-terrestrial life-form' (Clangers).
The Autons, I mean who wouldn't be freaked out by mannequins coming to life. The Weeping Angels too. The freaky virus that took over the people on Mars in The Waters of Mars creeped me out too. I can't stand watching that episode anymore.