Answer: (highlight to view it) They all have appeared in television shows about the supernatural. Wentworth Miller guest starred in an episode of "Ghost Whisperer" where he played the tormented ghost of a fallen Vietnam war soldier.
I was looking to see if there was a "Ghost Whisperer" thread and instead I found this thread where David talks about good looking guys. I remember this episode of "Ghost Whisperer" where there was a ghost of a fallen war soldier. Was this it or was there another one where it was a fallen soldier from Iraq?