HELP!!!...HELP!!!...what's the name of this show?

there was this show on channel 11 back in da day wen it was called WB...the show was about some kid always visiting some haunted house...i think...and there was some blue skinned elvis looking guy, a mummy, a vampire(i think), and frankenstein...i don't no about frankenstein...but the rest yea...dat blue elvis looking guy had a big chin and for some reason always snapped his fingers to do magic...what's dat show called?