<P> Detective Brian Cassidy is a fictional character played by Dean Winters in the American crime drama television series Law & Order : Special Victims Unit on NBC . A recurring cast member during the first season , Cassidy is a young and inexperienced detective with the New York Police Department 's Special Victims Unit , and the original partner of John Munch ( Richard Belzer ) . The stress of the Special Victims Unit is too much for Cassidy , and he transfers to the Narcotics unit in the middle of the season . Cassidy later returns in the thirteenth season finale working undercover for a pimp the SVU detectives are investigating . </P>
<P> Detective Brian Cassidy is a fictional character played by Dean Winters in the American crime drama television series Law & Order : Special Victims Unit on NBC . A recurring cast member during the first season , Cassidy is a young and inexperienced detective with the New York Police Department 's Special Victims Unit , and the original partner of John Munch ( Richard Belzer ) . The stress of the Special Victims Unit is too much for Cassidy , and he transfers to the Narcotics unit in the middle of the season . Cassidy later returns in the thirteenth season finale working undercover for a pimp the SVU detectives are investigating . </P>
who plays brian cassidy on law and order svu
who plays brian cassidy on law and order svu
Dean Winters
Dean Winters