Kellman

Kellman runs the Demonic Academy and seeks humans to put them in the demonic training program to make them demons. Kellman himself was once human and has been put through the demonic training program. He has earned eight chevrons, which means he has done things for the Source of All Evil to earn two more then the usual six.

Trivia

 * Ron Perlman also plays a demon/devil in Hellboy and Hellboy 2

Appearances
Kellman appeared in a total of 1 episode throughout the course of the series.
 * Season 3
 * Wrestling With Demons