Rollor was Nathan Bates right hand Man after the final battle. When Ham Tyler Goes Rogue, Nathan puts rollor in charge of security and orders him to find and eliminate him. Rollor is unsuccessful in getting ham, but is then put incharge of finding the starchild. Unfourtuntly for him he is unsuccessfull at that as well. Nathan Doesn't take kindly to so much failure, so he is retired by mr.chiang It is implied that Chiang killed off Roller but it was off-screen and Roller’s fate is unknown.