14. Clayface in Birds of Prey
Episode: "Feat of Clay" (Season 1, Episode 12)
Who's bright idea was it to try and portray a shape-shifting, mud-coated villain on a cheaply produced WB show? The end result is just a normal guy who looks like he lathered himself in silly putty at the beginning of the day, and now it's slowly melting off. One week later, Birds of Prey was cancelled. Go figure.