The Crossing - S1-E2
Visible crew/equipment: After Hank Dale tells Steve Pinkus that he wants to know "How it feels to get away with murder," Hank throws a punch, and in the next wide shot we can see the second cameraman's arms holding an additional camera, presumably to film the close-up, at the right side of the screen. (00:32:35)
Visible crew/equipment: When Melinda is at the VFW trying to get information on Paul Evans, she and Joe are alone with his wife's ghost, and after Joe tells Melinda that she can come by anytime for scintillating conversation, it cuts to a shot facing her and we can see equipment movement at the bottom right side of the screen.
Answer: This "spirit" appears in several episodes throughout the rest of the season including the season finale. He's a "bad spirit" that is intent on keeping souls trapped on Earth. With the death of Andrea (her business partner) he wanted to make a deal with Melinda, to give him HER soul to release everyone else including Andrea to cross over.
Boobra