I do believe it is Walter Mashburn, .  In the episode Red Line he is someone who "reads" Lisbon right off as Jane would do.  He is amused by Jane and challenges him and Lisbon by saying "catch me if you can" even though he knows he's was not the killer in this particular case.  He seems to want to be Patrick's " buddy" much like Red John who wants Jane on his side.  When Jane finally does catch the killer in he is impressed and finds it exciting.  He also tells Jane "maybe next time I'll be the killer" 
Also, as we know Red John is a character that seems to be able to get anyone to do anything.  This Mashburn character literally "charms the pants off" of Lisbon in a later episode which is not easy to do.