anybody know who's vanessa hudgens manager or agent ?

If you google the film Explicit Ills you will see pix of her with her manager at its premiere in Texas. I don't remember his name right now.

You can find info on agents and managers via IMDBpro. You have to be a member (paid) to get the info, but they do offer a free trial membership. Once you join, you can find out who reps any actor.