Visible crew/equipment: As Gibbs, Ziva & Tony enter the Nelson home with guns drawn; just after Ziva enters, a man can be seen reflected in the door's window (Gibbs & Tony are in frame, and there is no other character there). Tony enters, then Gibbs - and we see the cameraman reflected also.TIME: 19:45.
Visible crew/equipment: Just near the end, as Ducky faces the other M.E. in Autopsy with his guilt, the camera shows a person reflected in the silver wall (who would be standing beside Ducky). It's not Ducky, as the M.E. is looking at and talking to Ducky with a different angle. The person appears to be dressed in medical scrubs, but the M.E. and Ducky are the only two in the room.