The original Super Friends marks its 45th anniversary this year, but you & I know Cartoon Network and Boomerang won't do anything about it. They didn't bother with the previous anniversary milestones, either.
Anyway, the Justice Leaguers have to deal with mad Dr. Rebos (Casey Kasem in a dual role), who's created android doubles of Superman (Danny Dark) & Wonder Dog (Frank Welker) as part of his plot. Welker also voices Rebos' aid, Loco.
Welker would later recycle his Loco voice for the Toyman 5 years later (Challenge of the Super Friends).