Who is John Clark in The Sum of All Fears?

Elite CIA paramilitary operative, Ryan's close friend and trusted ally.

Who plays John Clark in The Sum of All Fears?

John Clark is played by Liev Schreiber.

John Clark's abilities include close quarters combat, weapons expert, stealth operations, tactical planning, survival skills.

John Clark has 5 mapped relationships in The Sum of All Fears. Explore the interactive relationship map for details.

Alignment: Hero
Species: Human
Abilities: Close quarters combat, Weapons expert, Stealth operations, Tactical planning, Survival skills

John Clark — related — Jack Ryan (Ben Affleck)
John Clark — Professional Colleague — Jack Ryan (Ben Affleck)
CIA analysts and operatives working in tandem to track the nuclear threat.

Cabot sends Clark to investigate the missing scientists while Ryan analyzes intelligence at Langley.
John Clark — Conflict Hunter And Prey — Olson (Colm Feore)
Direct field pursuit driven by intelligence leads.

Clark tracks Olson to Damascus after Ghazi reveals the sale location.
John Clark — Conflict Investigator And Mastermind — Dressler (Alan Bates)
Operational pressure applied to the central antagonist.

Clark's field work complements Ryan's analysis to dismantle Dressler's network.
John Clark — Alliance Covert Partners — Anatoli Grushkov (Michael Byrne)
Parallel covert efforts converging on the same objective.

Clark and Grushkov's respective operations align to track the missing scientists and bomb.