Solomon is the ridiculously powerful practitioner at the head of the crisis unit. As one of the few contract employees of the project that can actually see and interact with astrals, he's charged with neutralizing them wherever they start to cause problems for Gordias.
While at work, for the most part at least, he is a ruthlessly sarcastic, cantankerous, chain-smoking asshole with a polite saccharine veneer. If you stay off his shit-list though, you'll find he is genuinely sweet, thoughtful, supportive, and viciously protective when not stressed out of his mind. If one knows him for long enough they'll also realize that he's a huge fucking dork. Will occasionally let slip a gosh or golly, probably laughs at the jokes they print on popsicle sticks.
Through certain events he brought to fruition with Oz, he has the ability to manipulate time within about 90 seconds of the present. This comes in handy in his line of work.
Has a white dove familiar named Pączki that is essentially his only line of communication with The Practice as a whole since he started working for Gordias, as its untraceable and he will not draw attention to any other practitioners if he can help it.
Oz his one comfort in life, other than his apprentices when he's not terrified for them. He essentially turns into a different person when he shows up.