The character he played in the film was named "Mark" and the name
listed for my friend in the credits was Curt Gareth. Obviously a
stage name as the guy's real first name is Jerrie (I can't remember
his last name).
I tried all the search engines and could only come up with mentions of
the "Curt Gareth" name at sites either selling videos of the film or
those dealing with queer cinema history.
If anyone knows of any other way of locating my friend, I sure would
appreciate being headed in the right direction. Mind you, it's been
almost 35 years and there's sure been a lot of water flow under the
dam...
Regards,
Paul