It is said that Grimm was once a Jedi Knight, but none of that can be confirmed. As so far, Grimm has only been reachable through holo-vid transmissions where he appears as a very tall, black-cloaked individual. Always calm and always at ease, this Sith shows characteristics that support the idea that he may have once been a Jedi - however, it must be noted that whenever this was - it is not so anymore. Grimm's primary characteristic is a deep and grating voice (some people have compared it to rubbing two granite bricks together) that never seems to lose it's temperment. Unlike Sith before him, Grimm has not been seen in the Galaxy, though prophecies and stories seem to allude to him as far back as the Old Republic's beginning days. (SPOILER: Grimm is the former Jedi Knight Aden Lothiar!) Grimm claims knowledge in Sith Sorcery include Alchemy and Rune-carving; a Sith Sorcery which was lost prior to him. No other information on this Sith is available at this time.