I am a big fan of Andy (What's that? That's Mr. Kaufman, to you!) and am currently on my 2nd reading of Bill Zehme's biography on him (Lost in the Funhouse).
Back in 2007, before I even knew about Asperger's or even what was "wrong" with me, I watched the movie Man on the Moon for the first time in years. Afterwards I wanted to know everything there was to know about Andy Kaufman and so I scoured the internet looking for videos and texts about him. After reading two of his biographies (Both Zehme's and the poorer Zmuda one) I began to feel a great connection between him and myself. I could, and still do, relate to the many aspects of his life and personality/personalities. By finally seeing that there WERE, in fact, people like me, especially someone like Mr. Kaufman, I finally began to feel more secure with myself.
Flash forward to fall 2008 when I finally stumbled upon the Asperger's page on Wikipedia while trying to learn more about Autism (out of mere curiosity, as I didn't really know what it was). After reading the page on AS, I began to do more research on the net and in books. I strongly felt that this really could be myself defined and at that point, I was reminded of Kaufman. If both reading about Andy and Asperger's for two completely different reasons made me feel the same way about myself, then I can without a doubt say that Andy Kaufman had some sort of HFA.
I cannot really give specific examples to support my argument as I'm still not an expert on AS or anything on the spectrum, but I do not care. I also don't want to sound too sappy, but Kaufman's life has greatly influenced mine for the better and that's all that matters to me.
It's kind of weird talking about this, as I've never been comfortable talking about Andy with other people because most of them don't like/understand him and as such they would feel the same way about me. And before anyone says anything, no I am not just some obsessed fan, I'm actually an aspiring comedian/song and dance man myself so this just gives it that extra kick.