He was Speedwalker...not sure about the rest of it.
I'm looking in to it as I distinctly remember hearing this - I was at the magic shop in the Pike Place Market must have been March or April of 1995. I made some reference to Bill Nye I think it was in regards to refuting some nonsense he saying about acid rain or the ozone hole (this was before global warming) using Dixie Lee Ray's book Trashing the Planet.
Anyhow the person I was talking to said - "You know Bill was in a prono film?". To which I said "Really,no way Speed Walker?" - they stood by the claim and I thought it was funny and man some people will do anything to be on T.V. -
I bet if its true folks in Disney would know. In fact didn't something he was going to do get axed by Disney way back when ...hmmm going to have to engage more gray cells as Google doesn't contain everything.
Trying to track down the person who told me this - bit of a long shot.
However this is not something I pulled entirely out of my whatchamacallit