Pretty sure I saw Hal Smith credited as the Wireless Operator on the ANN page around the last time I rewatched the movie (four months ago?) but had no clue about the bogus credits guy. Looks like he shifted up his fantasy cast a bit
Funny, I'd actually watched it with Mike Toole and Shawn Kleckner's commentary on, and they mentioned how they had talked with multiple parties about the alleged 1980's release, who swore they saw it or saw that it was playing at an actual theater... but there's just no paper trail. No ticket records, screentimes, nothing. On the off-chance it exists it's the Keyser Soze of anime dubs