<Tr> <Th> Children </Th> <Td> Andy Sipowicz, Jr. (son, deceased) Theo Sipowicz (son) Matthew Sipowicz (son) Michelle McDowell (adopted daughter) </Td> </Tr> <Tr> <Th> Nationality </Th> <Td> Polish / American </Td> </Tr> <P> Andrew "Andy" Sipowicz is a fictional character and protagonist on the popular ABC television series NYPD Blue . Dennis Franz portrayed the character for its entire run . </P> <P> Sipowicz was a New York City police detective working in the detective squad of the fictitious 15th Precinct of the NYPD, placed on the lower east side of Manhattan . He was the central character of the show during its twelve - year run, and the only one to have been a regular cast member in every episode . (Detective Greg Medavoy (Gordon Clapp) did not appear until episode 3 of the first season and did not become a regular until the start of season 2) </P>

Who played andy sipowicz son on nypd blue