Dr. Jow is the first antagonist within the storyline, yet the second shown throughout the series. He debuts within he The Outbreak. Dr. Jow is a strange human scientist who lives in a haunted house looking lab on the side of a mountain, out in the open. Yeah, in the open. He became a great enemy of Ruhan after his arrival.
Jow has the ability to transmit ki out through his staff, he has a great past in martial arts as well. Not much is known about Jow at the moment.