"I've read your work. Your studies, specifically on cell degeneration are ahead of their time."
Gavin to Dr. Mitchell.[src]

Dr. Oliver Mitchell was a mortal scientist who studied cell degeneration. Because he would one day help create a vaccine that would wipe out warlocks in the future, he became a target.


In 1998, Dr. Mitchell was confronted in a parking lot by Gavin, a warlock from the future. Gavin claimed to have read all his work, even one that wasn't even published yet. He then told Dr. Mitchell that his work would help finding the vaccine and proceeded to kill him by burning a hole in his forehead.


Dr. Oliver Mitchell appeared in a total of 1 episode over the course of the series.