Chloe is joining Jack Bauer for his return to television.
Mary Lynn Rajskub will reprise her role as CTU systems analyst Chloe O'Brian on Fox's "24: Live Another Day."
Kiefer Sutherland will also be back, portraying Bauer once again. Howard Gordon is also returning as executive producer.
"I am thrilled to be working with Howard [Gordon] and the writers again -- and, of course, Kiefer," Rajskub said in a statement, according to Entertainment Weekly. "There's a lot more room to grow in my character... I'm going to start sharpening my computer skills right now."
Rajskub joined the Fox thriller as Chloe during its third season, and went on to appear in more "24" episodes than any other character, save for Bauer himself.
"24: Live Another Day," which reportedly picks up several years after the events of the show's final season, will premiere in the spring of 2014.