Keith Pittman owns the movie production firm, some found it weird that he went into that kind of business, so they specutlated that he did it to find new sex partners.
He is an extreme alpha from a very rich and powerful family, and he is Grayson Miller's best friend. He is a womanizer, was initially homo- and omegaphobic (both his parents are male by the way...). Changed partners regualry. His secretary Yeonwoo was responsible to find him new partners and deal with the ones he casted aside. He was a beta but turned into an omega by Keith in the past, when he confused him for a female (Keith finds out about it very late... in the side stories...). The mark on his ear is from Yeonwoo, but Keith doesn't know at that point of the story. Actuallly Josh met Yeonwoo during that party, before he ran into Chase at the end of the chapter. Don't know if they left it out completely or add it later on, probably as a flashback? who knows.

I haven’t read kiss me liar can someone tell me who is this pittman