The actual name of this character is EP Henchman #3, but the wiki does not allow for the inclusion of pound signs in article names.
EP Henchman 3 is a minor character in Psych: The Movie and is portrayed by Seth Whittaker. He's the henchman of El Proveedor who finds Shawn's fake beard that was lost during the jewelry chase and subsequently discovers that there's a label in it with the name 'Burton Guster'.