It is really sad, he was very talented. He wasn't even an actor or anything, he was the personal assistant to Joss Whedon's wife. They went out of drinks or something to some club and they were all just having a good time singing karaoke, they all saw Andy Hallett sing something. After this Joss wrote the Host for him to play on Angel.
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The batman villians all seem to be one big joke that batman refuses to laugh at - SantaRPG