Going through Ye Olde Review Blog, and I found a black female scientist by the name of Charlene Masters (played by Janet MacLachlan) on TOS’ season one, episode twenty, “The Alternative Factor.” Her assistant is a white male, and I can just hear those late-sixties network executives fuming about how you can’t have a black female scientist on tv, and Gene Roddenberry laughing, “the hell I can’t!”