The clock is ticking on the countdown to the 24: Live Another Day premiere, and Jack Bauer fans can now get a glimpse at the FOX series' new and returning characters.

'24: Live Another Day' Episode 2 To Start At 1 pm?

Four years after 24 left the airwaves, the 12-episode limited run of 24: Live Another Day will catch up with Bauer (Keifer Sutherland) in London, four years after the events of "Day 8: 3:00 p.m. - 4:00 p.m."

Entertainment Weekly has released new cast photos, and Enstars has compiled a Who's Who guide to the familiar and decidedly unfamiliar faces of the anti-terrorism-based story. Click a character's name to see their photo.

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Jack Bauer - Now located in London, Jack no longer works for the Counter Terrorist Unit and is unable to return to his native country.

"The idea of him being a fugitive and also being somewhere else and wanting to come home felt like an emotional framework that we could work inside," explained executive producer Howard Gordon, according to IGN.

Kate Morgan (Yvonne Strahovski) - A CIA operative that is doggedly tracking Bauer in an effort to capture him.

"[They are] hunter and hunted, initially. Obviously that dynamic changes when she realizes he's not the man everyone is accusing him of being," said executive producer Evan Katz, according to TV Line. "She's smart and relentless, and not just a woman with a gun."

Chloe O'Brian (Mary Lynn Rajskub) - Chloe has also left the CTU and has instead turned against the government and is working for a radical form of WikiLeaks. O'Brian and Bauer will not be on the same side when 24: Live Another Day begins.

Chloe is described by Gordon "someone who has been quite damaged and has now joined the free information movement," and Collider states that her role and her involvement with Bauer will evolve as the series progresses.

Adrian Cross (Michael Wincott) - A Julian Assange-esque hacker that Chloe works for.

24: Live Another Day will premiere on May 5 on Fox. Click the video below to see a preview.

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24: Live Another Day, Fox, Television