10 Actors Who Appeared In Star Trek AND Batman: The Animated Series

3. Nichelle Nichols - Thoth Khepera

Thoth Khepera wasn't really very nice when one gets down to it. She was an ancient Egyptian queen, surviving for millennia thanks to her Lazarus Pit. Ra's Al Ghul sought her out, hungrily wanting her knowledge for himself. He bit off a little more than he could chew and would likely have died as a result, were it not for his daughter and a certain bat-themed vigilante.

Khepera, in being a queen, needed someone with a regal vocal range to play her. Who better than Nichelle Nichols, crossing over from her iconic role as Nyota Uhura? Avatar, the eighth episode of the second season, was closer to a horror story than an adventure. Khepera's true appearance was gaunt, evil, and deadly. 

Batman traps the villain, but he doesn't kill her. It's been roughly thirty years since the episode aired, but what is thirty years to an immortal being?