By James Hibberd
Updated July 06, 2012 at 07:00 PM EDT
Luka Jones
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Christina Applegate is getting a brother on NBC’s Up All Night, a move that’s going to add a major new dynamic to the show.

Actor Luka Jones is joining the comedy as a series regular this fall.

Jones (Best Friends Forever) will play Reagan’s younger brother Scott. He’s a contractor who is great at his job, but ultra laid back and doesn’t have much business sense. He’s a sharp contrast to Applegate’s Reagan, who’s the ultimate planner. Reagan’s husband, Chris (Will Arnett), likes his cool, mellow brother-in-law. The recently divorced Sam also has a five-year-old son who’s given free rein to do whatever he wants, which horrifies Reagan, considering the effect it might have on her daughter. Up All Night returns Thursday, Sept. 20.

Up All Night

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