Pennywise

"They ALL float down here. When your down here with us, you'll float too! "

Pennywise as portrayed by Tim Curry in 1990's "It."

A couple of interesting pieces of trivia:
According to the commentary on the DVD, Tim Curry's Pennywise was so unnerving that the cast and crew completely avoided him while on the set.

Richie's worst fear is a werewolf in this movie. Seth Green, who plays young Richie, would go on to play a werewolf in Buffy the Vampire Slayer.

Radio Times magazine in 2004 held a survey for the scariest programme aired on television, in which It came first. The X-Files came second. Others on the top ten list included Twin Peaks, Ghostwatch and Tales of the Unexpected. The Sci Fi channel annouced a 4 hour remake of the film which will appear in the year 2007 or 2008.