Carla Peterson was the head nurse working for Rudy Wells in the OSI's bionics program. Following Steve Austin's crash and bionic reconstruction, she and Steve carried on a brief romance. After they broke up, Steve would still encounter her from time to time, such as during his regular psychological evaluations. Carla witnessed Barney's instability first-hand, but chose to stay with him, supporting him after his bionics were "permanently" tuned down to human level. She later married Hiller.