The Hellboy official site has your first look at the Hellboy 2 character Johann Krauss. Now I don’t know who Johann Krauss is, since the last time I read the Hellboy comics was well before the first movie, and I’m sure the comics universe has since expanded into other parts and created whole new characters that I’ve never heard off. In any case, check out the concept art for Johann Krauss.
More about the character from Wikipedia:
Johann Kraus is a fictional character in the Hellboy universe, featured in B.P.R.D. comic books published by Dark Horse Comics. He is a disembodied ectoplasmic spirit with psychic abilities who maintains a tangible form via a containment suit. Without the suit, his body would eventually dissipate and he would be lost forever.