Orson Welles Fell Even Further Than I Thought

I've long thought Orson Welles had the greatest classic movie decline.

First film, Citizen Kane
Last film, voice of the planet eating planet in Transformers: The Movie

But I now come to find out that he was also the voice of Robin Masters on Magnum, P.I. from 1980 to 1985. Wow! I wonder if he got to ride in the Ferrari at all?