Wiki 24
Wiki 24
This article's subject relates to Season 5 of 24.This is a production article written from an out-of-universe perspective

This is a list of characters with articles or unnamed characters entries who were antagonists during Day 5.

Day 5's antagonists can be divided into two categories: Vladimir Bierko's Dawn Brigade, a group of Russian separatists which acquired highly lethal Sentox gas; and, the members of the Sentox nerve gas conspiracy whose plot to trick the separatists went awry.

Dawn Brigade separatists[]

First cell[]

Anton Beresch initiates the takeover of the Ontario Airport.

Anton Beresch: leader of Bierko's cell at the Ontario Airport; killed himself to avoid capture

  • Chevensky: terrorist and liaison between Beresch and Ivan Erwich at the Ontario Airport
  • Gunman #1: Beresch's lieutenant at the Ontario Airport
  • Ibrim: one of Beresch's terrorists at the Ontario Airport
  • Vlad: one of Beresch's terrorists
  • Ivan: one of Beresch's terrorists (not Ivan Erwich)
  • Ishmael: one of Beresch's terrorists
  • Achmed: one of Beresch's terrorists

Second cell[]

Ivan Erwich, the man who activated the canisters and discovered the conspiracy.

Ivan Erwich: leader of this sub-cell; was secretly a plant among Beresch's hostages who was responsible for transferring out the gas canisters from the airport after Beresch's attack was used as a cover up; stabbed by Bierko

Primary cell[]

The leader of the Dawn Brigade, Vladimir Bierko.

Vladimir Bierko: leader and financier of the Dawn Brigade, planned the later nerve gas attacks, the attack on the Suvarov motorcade and the Natalia takeover; neck snapped in self-defense by Jack Bauer

Bierko's external supporters[]

  • Collette Stenger: information broker who sold schematics of the Wilshire Gas Company to Bierko and framed Audrey Raines; incarcerated
  • Joseph Malina: arms dealer with connections to Henderson; sold information to help Bierko board the Natalia
  • Jenny McGill and Dwayne Thompkins: planned to sell Lynn McGill's keycard to Ostroff for money, but Ostroff murdered them instead to reprogram the key card to commit the Sentox attack

American Sentox nerve gas conspiracy participants[]

Christopher Henderson & Omicron mercenaries[]

Christopher Henderson, an important manager of the ground operations of the conspiracy.

Christopher Henderson: ex-mentor of Jack and former CTU director, orchestrated the murders of David Palmer, Tony Almeida, and Michelle Dessler at the behest of Jack's brother and the CEO of BXJ Technologies Graem Bauer; senior Executive of Omicron International; killed in cold blood by Jack Bauer

  • Brennan: head of the unit that infiltrated the Presidential Estate on Christopher Henderson's order to assassinate Wayne Palmer; was later present during the exchange between Henderson and Evelyn Martin; killed by Jack Bauer
    • Cobb: one of the men in Brennan's squad; was knocked out by Wayne Palmer
  • Henderson's mercenary: ran security during the exchange between Evelyn and Henderson
  • Cooper: leader of Henderson's mercenary squad to assassinate Jack Bauer, Wayne Palmer, and Carl Mossman at the City Trust and Savings; Bauer tripped an alarm making LAPD arrive and engage Cooper and his men; Mossman and Cooper were killed in the ensuing gunfire with the LAPD and military as Bauer and Palmer eluded the scene
  • Stipes: leader of the mercenaries who flew alongside James Heller's car in a helicopter with orders to kill him if Henderson did not periodically contact them; killed by Curtis Manning
  • Henderson contact: intercepted a 911 call made by Amy Martin; reported this to Henderson
  • Scott Evans: lead pilot for Omicron International; Henderson handed off the recording to him; forced by Jack to land his plan and later incarcerated
  • (David Emerson: as revealed in Day 7, he was the leader of a group of Henderson's men who revived Tony Almeida less than 10 minutes after his heart was stopped by Henderson)

Charles Logan's cabal and supporters[]

The highest-ranking sponsors of the conspiracy, President Charles Logan and Graem Bauer

President Charles Logan: a high level sponsor of the conspiracy; was exposed when Jack Bauer found a recording of a conversation between him and Henderson; after Miles Papazian destroyed this recording, Bauer, Chloe O'Brian, Mike Novick, Aaron Pierce, and Martha Logan worked together to expose him and remove him from office; arrested for murder and treason

  • Walt Cummings: Logan's Chief of Staff; involved in the early hours of the conspiracy with Nathanson; killed but framed as a suicide under orders from Graem and his associates, who planned to have him be the scapegoat of the plan from the beginning
    • Hank: an assassin hired by Cummings to eliminate Jack Bauer; failed, and killed by Jack; was entered into CTU by an unsuspecting Spenser Wolff
    • Schaeffer: Cummings' inside man within the terrorists; exposed then killed by either Ivan Erwich or his men
  • James Nathanson: Charles Logan's middleman and contact for Cummings; with the help of Russian Consul Anatoly Markov, he established communication with the separatists and supported Anton Beresch and his men; after being discovered, Nathanson cut a deal to gave Bauer a chip that lead to Omicron International and Henderson; killed by Ostroff
    • Spotter: a field operative of Nathanson who found Haas and his three men dead and was the middleman for communications between Haas and Nathanson
      • Conrad Haas: a trained sniper and assassin hired by James Nathanson and Christopher Henderson who killed David Palmer, bombed Michelle Dessler and Tony Almeida's car, and tried to kill Chloe O'Brian; killed in cold blood by Jack Bauer
        • Kohler: one of the three men working beneath Haas; pursued Chloe O'Brian; was stabbed in the neck by Jack Bauer.
    • Alpha 7: associate and co-conspirator of Nathanson; killed by one of Bierko's men
    • Nathanson's man: one of the subordinates of Nathanson; killed by Ostroff while hunting for Nathanson.
  • Anatoly Markov: Russian consul; introduced during Day 6 when Logan revealed that he was a co-conspirator in the events leading up to Day 5; he was the operative inside the Russian government who helped Nathanson establish a connection with the separatists
  • Justin Adams: a corrupt Secret Service agent loyal to President Logan; restrained Martha Logan; later was sent to murder Aaron Pierce, but was shot first by Martha Logan using his own gun
  • Miles Papazian: Homeland Security staffer; allegedly sexually harassed Shari Rothenberg several years ago; destroyed an important and incriminating audio recording of President Logan to gain favor and was rewarded with the promise of a high-ranking position at the White House; fate unknown after Logan was arrested

BXJ Technologies cabal members[]

Graem Bauer: the leader of the four BXJ Technologies co-conspirators; directed President Logan through the cover-up in the last hours of the day; ordered Henderson to kill David Palmer and told Cheng Zhi that Jack is alive (after Logan's arrest, he was not implicated in the conspiracy and he remained at large; killed during Day 6 by his father Phillip)

  • Ron: one of Graem's three co-conspirators at BXJ
  • Robert Joseph: one of Graem's three co-conspirators at BXJ
  • (Alan Wilson: revealed by Tony Almeida during Day 7 to have been a primary architect of the Sentox conspiracy as "the man behind Charles Logan"; his actual relationship to BXJ was not elaborated upon)

Chinese operatives[]

  • Cheng Zhi: kidnapped Jack Bauer in recompense for Jack's invasion of a Chinese consulate during Day 4 and to extract American secrets from him
    • Chinese agent: one of Cheng's men; deceived Jack Bauer to assist in his kidnapping


  • Spenser Wolff: although well-intentioned, Wolff was unknowingly a mole in CTU planted by Walt Cummings to spy on Jack; through Wolff was Cummings able to get Hank into CTU
  • Hervé: verified Collette Stenger's (later nullified) immunity deal that would've granted her full immunity for her terrorist collaborations