Lyn Peterfield

Lyn Peterfield was a CIA agent in the 21st century.

biography
Lyn was sent to help bring Jack Harkness, Gwen Cooper and fellow CIA agent Rex Matheson back to America. She attempted to assassinate Jack Harkness by putting arsenic in Jack's coke, but was discovered by Rex and Gwen. She was then handcuffed as Gwen and Rex attempted to save Jack, but near their completion of the task Lyn freed herself, but was soon knocked unconscious by Gwen.

When she returned to America, guards pretended to arrest her and before she could attack Jack, Gwen and Rex, Rex knocked out the guards and broke Lyn's neck. She soon after stumbled towards Esther Drummond's stolen car, but Esther, Jack, Gwen and Rex drove away from her. (TW: Rendition)