The Whistle Blower

A retired British naval officer who runs a small business. He is bright, loyal, and idealistic, yet pragmatic when faced with dangerous secrets. He seeks to protect his family while exposing the truth behind his son's death and the government's covert operations.

A bright and idealistic linguist at GCHQ who uncovers illegal operations and plans to leave and marry Cynthia. His revelations trigger a dangerous chain of events and a struggle to determine loyalty within the intelligence world.

Bob's fiancée who has a young daughter. She is drawn into the fallout of the espionage world, dealing with danger and the prospect of a life shaped by secret operations and family survival.

An investigative reporter who seeks the truth about illegal operations. He becomes entangled in the case and is killed in an elaborately staged traffic accident, turning his pursuit of the story into a personal tragedy.

A government official who emerges as the Russian mole at the heart of the conspiracy. He is confronted by Frank and ultimately dies in the climactic confrontation, exposing the depth of the cover-up.

An old Navy chum now with MI6 who quizzes Bob about loyalty. He appears as a sympathetic ally but is revealed to be part of the murky web surrounding the espionage plot.

A British Intelligence colleague who records conversations and aids in navigating the complexities of the covert operation.

A government official involved in the strategy to mislead the Americans about the depth of Russian intelligence infiltration. He represents the higher echelons of power in the conspiracy.

Secretary to the Cabinet who briefs Frank on the scale of the cover-up and the potential consequences of going public.

Bob's friend and fellow linguist who informs Frank about the implications of the case and points him toward the connections involving Greig and the mole.