US TV
Rex Features
The pilot revolves around the FBI's National Capital Response Squad, made up of experts who travel the world responding to national crises.
Polo is to play Amanda O'Donnell, a medical forensics expert, whose husband is also on the team.
The actress has previously starred in episodes of CSI: Miami, Numb3rs, and The West Wing.
The Washington Field pilot was written by Ed Bernero (Criminal Minds) and his brother Tim Clemente, a former terrorism expert.
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2012-13 Season
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