Clayface rocks. Sort of a cross between THE BLOB and THE THING. I can't explain why I like him so much, but he's definitely one of the neater monsters ever designed. Here's an interview I did with him back in 1985 that I managed to dig up.
ROBERT: Hey Clayface, did you watch MIAMI VICE last night?
ROBERT: You know, MIAMI VICE, that cop show about cops in MIAMI?
CLAYFACE: I don't watch TV.
ROBERT: Hey, did you get Duran Duran's latest album?
CLAYFACE: UNION OF THE SNAKE? No way, that sucks.
ROBERT: So why are you such a cool monster?
CLAYFACE: I just am...this interview is over.
ROBERT: Okay...thanks Clayface! I love you!
There have been 6 different Clayfaces in Batman comics since he first appeared in 1940.
Actor Ron Perlman, from TV's BEAUTY AND THE BEAST supplied the voice of Clayface in BATMAN THE ANIMATED SERIES.