Christian Kane Christian Kane

Christian Kane and Jerry O'Connell have been tapped to guest-star on TNT's new drama King & Maxwell.

Based on the David Baldacci novels, the series stars Jon Tenny and Rebecca Romjin as former Secret Service agents Sean King and Michelle Maxwell who work as private investigators.

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Leverage's Kane, who first tweeted the news of his appearance, will play the brother of Michelle Maxwell. According to Entertainment Weekly, O'Connell, who is married to Romjin in real life and will star on CBS' We Are Men this fall, will play another private investigator who is always just one step behind on his cases.

King & Maxwell premieres Monday at 10/9c on TNT.