Batman TAS: Christmas With the Joker (1992)
While Christmas With the Joker was the second episode made of Batman: The Animated Series, it didn't air until after about a dozen others. So, while viewers already had opportunities to see the show's take on the Clown Prince of Crime, this was really the show's first try. As in everything in this continuity (Batman: TAS, Superman, Batman Beyond, and Justice League), the Joker was voiced by Mark Hamil. You always get the sense he's having fun with the role, but I'm not sure he ever had THIS much fun again. There's a spastic intensity, a cruel joy, in his laugh that's kind of infectious. As a whole, the episode's pace is a little off, but that's a lot of what gives this its charm: there's room for a lot of bizarre Joker moments they wouldn't spend time on later; it's a fantastic exploration of his character (though they'd refine and improve that character over time, giving him more complexity than he showed here). In par