Chauncey is a character from In From The Cold, a crime-thriller series written and produced by Adam Glass. The character is portrayed by Cillian O'Sullivan.
Chauncey is a rogue CIA agent, who hunts down and compels a long lost, top-secret Russian Intelligence asset, code-named “The Whisper," to switch her allegiances and help him settle his own personal vendetta.
During a European vacation with her daughter, an American single mom’s (Levieva) life is turned upside down when the CIA forces her to confront her long-buried past as a Russian spy who was also the product of a highly classified KGB experiment granting her special abilities. After a mysterious string of manic and murderous incidents suggests someone with her exact abilities is targeting innocent people, Jenny is forced out of hiding to stop this villain or risk losing the family and new life she has built.