[Alf]

1) darth vader (star wars)
2) hannibal lector (silence of the lambs)
3) cody jarrett (white heat)
4) norman bates (psycho)
5) the terminator (the terminator)
6) annie wilkes (misery)
7) amon goeth (schindlers list)
8) max cady (cape fear)
9) the wicked witch of the west (wizard of oz)
10) anton chigurh (no country for old men)

[Ross]

I dunno... I think Penguin (Batman) was evil.

[setanta]

Agree with all of your choices wannashag.

Others ones that spring to mind for me are....

Nurse Ratchet (One Flew Over The Cuckoo's Nest)
Robert Mitchum in Night of the Hunter
Alan Rickman in either Die Hard or Robin Hood: Prince of Thieves
Alan Arkin in Wait Until Dark

[hennessy]

1) Keyser Sozer
2) Darth Maul
3) Stansfield in Leon
4) Tetsuo in Akira
5) Jaws from Bond
6) Angel Eyes from the good, the bad and the ugly
7) Louis Cyphre from Angel Heart
8) Det. Jack Scagnetti
9) The Joker in DK
10) Frank from Once upon a time in the west

I agree with yours wannashag but didn't want to double