Weisberg grew up in Chicago. He is a former CIA officer. He wrote the novels 10th Grade (2002, Random House), which was a 2002 New York Times Notable Book, and An Ordinary Spy (2008, Bloomsbury USA).
During Falling SkiesEdit
He made his television writing debut as a freelance writer for the first season of the science fiction drama Falling Skies on TNT in 2011. He wrote the first season episodes "Silent Kill" and "Mutiny".
He wrote an episode for the fourth season of the FX legal thriller Damages entitled "Next One's on Me, Blondie" in 2011. The season featured a corrupt CIA officer played by Dylan Baker.
He returned as a writer for the second season of Falling Skies in 2012. He wrote the episode "Love and Other Acts of Courage".
He has two pilots in development. The first, entitled The Americans and set-up at FX, centers on two KGB agents posing as American citizens in Washington, D.C. during the 1980s and will be executive produced by Weisberg and Falling Skies Executive Producer Graham Yost. Weisberg's second project, an untitled thriller centered on young CIA agents, is being developed at Fox and will be executive produced by Weisberg, Brian Grazer and Paul Greengrass.