Pete Garrison (played by Michael Douglas) is a protagonist in The Sentinel.
Veteran Secret Service agent and personal bodyguard to First Lady Sarah Ballentine, with whom he is having an affair. After his friend is murdered, he investigates an assassination plot, fails a polygraph due to the affair, and goes rogue to uncover a mole. He ultimately helps save the President in Toronto but is forced into early retirement due to the scandal. David Breckinridge (played by Kiefer Sutherland) is a protagonist in The Sentinel.
Head of the Secret Service Protective Intelligence Division and Garrison's estranged former protégé. He oversees the polygraph investigation, initially suspects Garrison of treason due to a past marital rift, but eventually teams up with him in Toronto to stop the assassination plot and reconcile. Jill Marin (played by Eva Longoria) appears in The Sentinel.
Rookie Secret Service agent and Breckinridge's partner. She assists in the investigation, relays crucial evidence to Garrison, and fights alongside him and Breckinridge in Toronto to neutralize the assassins and protect the President and First Lady. William Montrose (played by Martin Donovan) appears in The Sentinel.
Head of the Presidential Protective Division who initially saves the President by randomly changing their transport. He is secretly the mole blackmailed by the assassins, tasked with compromising security at the Toronto summit, but ultimately sacrifices himself when he turns against the killers. Sarah Ballentine (played by Kim Basinger) appears in The Sentinel.
The First Lady of the United States and Garrison's secret lover. Her affair causes Garrison to fail the polygraph, but she later confesses to Breckinridge to clear his name. She is briefly taken hostage by the assassin handler before being rescued. Charlie Merriweather (played by Clark Johnson) appears in The Sentinel.
The Sentinel (2006) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Pete Garrison
(played by Michael Douglas) — protagonist
Veteran Secret Service agent and personal bodyguard to First Lady Sarah Ballentine, with whom he is having an affair. After his friend is murdered, he investigates an assassination plot, fails a polyg...
David Breckinridge
(played by Kiefer Sutherland) — protagonist
Head of the Secret Service Protective Intelligence Division and Garrison's estranged former protégé. He oversees the polygraph investigation, initially suspects Garrison of treason due to a past marit...
Jill Marin
(played by Eva Longoria) — supporting
Rookie Secret Service agent and Breckinridge's partner. She assists in the investigation, relays crucial evidence to Garrison, and fights alongside him and Breckinridge in Toronto to neutralize the as...
William Montrose
(played by Martin Donovan) — supporting
Head of the Presidential Protective Division who initially saves the President by randomly changing their transport. He is secretly the mole blackmailed by the assassins, tasked with compromising secu...
Sarah Ballentine
(played by Kim Basinger) — supporting
The First Lady of the United States and Garrison's secret lover. Her affair causes Garrison to fail the polygraph, but she later confesses to Breckinridge to clear his name. She is briefly taken hosta...
Charlie Merriweather
(played by Clark Johnson) — minor
Canonical Relationships
Family, romantic, and professional connections based on plot evidence.
Sarah Ballentine → Jill Marin
(Professional Protected Principal)
Jill participates in the Toronto operation that rescues Sarah after she is taken hostage.
William Montrose → Sarah Ballentine
(Professional Protective Officer)
Montrose is in charge of presidential protection and changes the transport plan during the Camp David visit.
David Breckinridge → William Montrose
(Professional Protective Division Counterpart)
Breckinridge leads Protective Intelligence, while Montrose heads the Presidential Protective Division; both are involved in the Toronto security opera...
David Breckinridge → Jill Marin
(Professional Senior Agent And Rookie Partner)
Breckinridge leads the Protective Intelligence Division and investigates the plot with rookie partner Jill.
Pete Garrison → William Montrose
(Professional Fellow Security Agent)
Garrison and Montrose are both senior Secret Service personnel involved in presidential protection.
Pete Garrison → Jill Marin
(Professional Contact)
Jill works with Breckinridge on the investigation, and Garrison later tells her about evidence found in an assassin's apartment.
Pete Garrison → David Breckinridge
(Professional Former Protégé)
Breckinridge is described as Garrison's estranged friend and former protégé.
Pete Garrison → Sarah Ballentine
(Romantic Secret Lover)
The plot states that Garrison is having an affair with Sarah, who is the First Lady he personally protects.
Story Dynamics
Alliances, conflicts, and narrative interactions that evolve throughout the story.
David Breckinridge → Sarah Ballentine
(Narrative Recipient Of Confession)
Sarah discloses her affair with Garrison to Breckinridge, explaining why Garrison failed the polygraph.
Pete Garrison → Charlie Merriweather
(Social Close Friend)
Charlie is described as Garrison's close friend and fellow agent.
Story Analysis
A veteran Secret Service agent must clear his name, expose an insider, and stop an assassination while his secret affair destroys his career.
Plot Progression
A Murdered Colleague
The Polygraph Trap
The Suspect Goes Rogue
Evidence Bound For Toronto
The Summit Betrayal
Directed by Clark Johnson
The Sentinel (2006) · 6.1/10 · action, crime, thriller
