Two pilots add cast

Jason Butler Harner has joined the cast of Showtime's drama pilot "Possible Side Effects." Meanwhile, two recurring players on "It's Always Sunny in Philadelphia," David Hornsby and Artemis Pebdani, have been added to Fox's single-camera comedy pilot "Boldly Going Nowhere," from the "It's Always Sunny" trio of Rob McElhenney, Charlie Day and Glenn Howerton. Full story