(1) The guy's face in the last panel. Sorry, I can't help you with this.
(2) Where's Rex Morgan, M.D.?
So as a public service, I'm going to try to summarize the current plotline in Rex Morgan, M.D.
The faceless gentleman in panel #3's name is Elvis. He got his girlfriend a job working at a meth lab for a guy named Eightball.
Elvis's girlfriend is a Hurricane Katrina refugee. She has a son. The son stole Rex Morgan, M.D.'s wife purse, resulting in June needing to make a frustrating trip to the DMV to get a new driver's license.
Later, June was working at the kid's clinic that Rex started with Troy Gainer, a fake doctor who shared a bizarrely homoerotic game of golf with him.
The purse-snatcher showed up at the clinic, having been beaten up by Elvis. June recognized him, chased him down, and made him take her to his apartment to return her purse. While there, June made him clean the apartment, and he told her that his mom just got a job working at a meth lab.
June returned home and filled Rex in, resulting in Rex yelling at her for going to a purse-snatcher's apartment alone. Then the meth lab blew up and the mother was taken to the hospital. Meanwhile, Elvis told Eightball that the kid had figured out that his mother was working in a meth lab, so Eightball told Elvis to ... I'm not quite sure ... keep him quiet or kill him or something. So now Elvis is trying to find the kid.