Our favorite juvenile delinquent turned architect Ben McKenzie has been on TNT's excellent Southland for five seasons, but he's been cast in a new CBS drama as TNT wavers on the fate of his show.

McKenzie would play an ex-con who pairs up with a lawyer as victim advocates who go "to the very edge of the law to right wrongs and fight for the underdog." Brit Morgan has the role of his sister, "a tattooed and pierced supermarket cashier." You might remember her as the white trash werewolf Debbie Pelt from True Blood.

McKenzie tweeted yesterday that The Advocates comes second to Southland; they're still waiting to hear whether TNT will give it a sixth season. 

Southland also stars Shawn Hatosy and Regina King.

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[via Deadline]