Shane Shoeppner lives in Los Angeles, which makes me think he was inserted into the RINGER pilot when they re-shot the scenes containing Siobhan’s daughter. (The role of Juliet was recast after the pilot had been shot in New York, and all scenes with Juliet needed to be done over in Los Angeles where the rest of the show will be filmed.) He gets to play a “man on cell phone”.
Shoeppner has been an extra on lots of TV shows and films. Showtime must like him, because he was on “Californication” twice and “The United States of Tara” twice.