 Remaining cast members included Tiny Ron Taylor as Lothar , Terry O 'Quinn as Howard Hughes , Jon Polito as Otis Bigelow , Ed Lauter as Agent Fitch , Eddie Jones as Malcolm the Mechanic and Robert Miranda as Spanish Johnny . Rocketeer creator Dave Stevens has a cameo as the German test pilot who is killed when the Nazis ' version of a rocket backpack explodes during the takeoff sequence . 
