She ended season seven by agreeing to torture. Here's a shot of Renee Walker from a season eight episode.

Kim Bauer will never go away. This might be a good thing for Jack, but it's not for most viewers.

Say hello to Dana Walsh. High up at CTU, she's played by Katee Sackhoff on 24.

Of course Chloe is back. What would 24 be without her?!?

Say hello to Brian Hastings. He's the boss at the new CTU, based on New York City.

Jack gets ready for yet another shootout on 24. This scene is courtesy of the series finale.

Things started out very well for Jack and Renee during the 8 a.m. hour. But this would soon change for the worst.

You might wanna go elsewhere, Meredith. Jack is about to get his major torture on.

Ethan Kanin may have had an affair with President Taylor on 24. Either way, he plays a key role in her administration.

We all know how good Jack Bauer is at killing people. But he's also a tech geek in many ways.

Jack Bauer is played by Kiefer Sutherland on 24. He's a true American hero.

Cole Ortiz is a CTU agent on season eight of 24. He's played by Freddie Prince Jr.