"Huh? No, no -- I never worked with Dr. Richards. That would have been so awesome, though," he adds, looking wistful.

"No, I mean back in my world, I work with vampire Slayers. Girls born with enhanced strength and agility and healing factor and just a smidgin of extrasensory. And they fight evil monsters."

Over a thousand years of Watcher lore cheerfully summarized for you!