NBC's Chase has cast Nia Long (The Fresh Prince of Bel Air, Third Watch) in the role of Assistant U.S. Attorney Melissa Randolph, described to me as a feisty lady who'll face off with the show's Deputy U.S. Marshal Jimmy Godfrey (Cole Hauser). The possibly multi-episode arc finds Jimmy employing renegade tactics in an attempt to rescue Annie Frost (Kelli Giddish) from a deadly drug cartel. Jimmy ultimately delivers a huge political win to Randolph — allowing her to take down the powerful cartel — which only complicates their already tumultuous relationship. Long's first appearance will likely be in mid-December.