The Might Stephen Hawking?

To be nitpicky, he played a hologram of himself. Maybe the only time that a real person has portrayed a fake version of themselves.

Speaking voice-Michael Jackson
Singing voice-NOT Michael Jackson

In one episode, Lisa references this with her thoughts on the Itchy and Scratchy Movie, saying it had all sorts of famous celebrities: “Michael Jackson, Dustin Hoffman…they didn’t use their real names, but you could tell it was them.”

AWB:

I stand corrected…

You know… it is possible to be too nitpicky… [wink]