Dr. Susan Charles was played by Fiona Lewis in The Fury.
She is an employee in the service of Childress in the PSI Facility. She is actively involved in the evil activities of Childress and, on his orders, establishes a sexual relationship with Robin in order to control and gradually abuse him mentally, psychologically and emotionally as part of a plan to turn him into a weapon at the service of the United States.
She makes progress in her and Childress` quest, but she also gradually turns Robin through her subtle abuse into a monster. She only realised that too late and finally became victim of her own actions, when Robin kills her in his mad state cause by her and the others.