Book. Wise-old preacher man cliché with a touch of magical negro, the way he just steps out of nowhere ready to pull out whatever skill or information the situation requires. I had no idea what he was even doing on the ship, every episode seemed to have to give him a new function, and I didn't much care for the unresolved secret history thing. Maybe if the show had lasted longer and more of his biography had come to light he would have made a more interesting character, certainly counteract the feeling of the semi-spiritual character with no past, but he was just so bland most of the time.
Fictitiously yours, Trent Roman