Actor Robert Englund is best known as his iconic role as Freddy Krueger in the Nightmare On Elm Street movies. Don't let his character fool you -- he's actually one of the nicest people you could meet. When taking pictures with fans he generally gives an evil Freddy type face, pretend to have his razor sharp claws, or even make it look like his grabbing or choking you... but he is one of the more down to Earth celebrities out there.
He's been very consistent being on the convention scene, so I'd certainly recommend coming face to face with Freddy himself if you're able. Class act!