There were over 5,000 that auditioned, so I don't know them all :D But I know Ben Barnes, Shiloh Fernandez and Jackson Rathbone were among the last 4 (with Robert, obviously) - but there were also Michael Welch (Mike), Jake Abel and Tyler Hoechlin. Kellan Lutz were asked to audition, but turned it down: "He's too complex, too depressing for me."