Operation Hell Gate

Characters from the Show

• Jack Bauer- The protagonist of 24, Jack goes undercover to take down the terrorist attack that threatens the country. A subplot involves Jack being framed by Frank Hensley for killing two Federal Marshals and helping a fugitive escape.
• Nina Myers- Nina provides CTU support for Jack in Los Angeles.
• Tony Almeida- Tony has his own subplot involving characters in Los Angeles related to the terrorist plot.
• Jamey Farrell and Milo Pressman- The main CTU tech analysts.
• Ryan Chappelle- Comes in from Division to help lead the operation on thwarting the days events.
• Richard Walsh- Appears in the Prologue and the Epilogue, debriefs Jack on Operation Hell Gate.

New Characters

• Caitlin O'Connor- An immigrant and girlfriend of Shamus, she finds herself in the middle of a conspiracy and ends up aiding Jack.
• Liam O'Connor- Caitlin's 15-year-old brother. Has his own sub-plot of delivering a case to Taj.
• Dae Soo Min (Doris)- A female Korean analyst brought in to help aid Jack.
• Georgi Timko- Russian immigrant who owns Tatiana's Tavern. At the end of the novel, it is revealed Timko gave CTU-Los Angeles the tip-off about the attack at the beginning of the novel.
• Yuri- Timko's trusty henchman. He doesn't say much but is skilled at gun-fights.
• Saito- undercover police agent for the LAPD
• Captain Jessica Schneider- A former marine who is called into CTU for help working on the computer chip. She is also there for field work.

Villains

• Frank Hensley - A war hero who was thought to be killed in Iraq by the Iraqi Special Forces. One of his captors assumed his identity and joined the FBI, allowing them to attempt an act of terror.
• Taj Ali Kahlil- brother of Khan Ali Kahlil. An Afghan who wants revenge on America for betraying his people in the Soviet-Afghanistan War.
• Khan Ali Kahlil- brother of Taj Kahlil. When Jack pretends to be Shamus Lynch to meet Taj, Khan pretends to be Taj to test Jack. When Jack fails that test, he attempts to kill Jack by choking him. The attempt fails and Khan commits suicide by throwing himself over the bridge.
• Shamus and Griffin Lynch- Two brothers who have a rough past in their home country. They both have aliases in America and aides in terrorism on US soil. Shamus tries to provide for Caitlin's family.
• Omar Bayat- henchman of Taj Kahlil and assassin to kill Felix Tanner.
• Dante Arete- Part of a Spanish gang involved in terrorist activity to launch a missile strike. He is caught by Jack Bauer but escapes after the plane crash lands. He helps terrorists to earn money, but is killed when the bomb inside the suitcase full of money is activated.
• Dennis Spain- Chief of staff of Senator Cheever of New York.

• Book excerpt and author information^{[dead link]} (Official publisher web page)