This was actually the first time George Barrow himself worked for Herman Cohen. The first time out, KONGA, Barrows sent his ape suit over to London. When it returned the worse for wear, he decided he'd never do it again.
BLACK ZOO was shot in Hollywood. For producer Cohen to have arranged for a foreign actor to come to Hollywood and take a job that could have been done by any number if US actors must've been quite an argument to both SAG and the Imigration Department. "Sirs, you must understand, my script calls for the zoo keeper to be the maddest, most outlandish, least subtle character ever to grace the movie screen. We just don't have an actor anywhere in the country who can do this. There is no one n the world who can out-mug Mr. Gough. I know, I've used him twice, and every time he gets bigger and badder."
