This article is from the NYPD Blue FAQ, by Dave Chapman, Alan Sepinwall and Jeff Knapp with numerous contributions by others.
Two. In the third season of the show, he appeared in a number
of episodes as Sal Benedetto, a crooked, mean-spirited
detective. Highlights of Benedetto's tenure on the Hill
included beating up Renko for giving him a parking ticket (and
subsequently being beaten up by Bobby Hill), attempting to
hold up a bank, and, when Howard Hunter's EATers foiled the
robbery, killing himself.
Franz became a regular cast member at the start of season 6,
playing Lt. Norman Buntz, an obnoxious, violent, but
ultimately moral cop who clashed with everybody on the Hill
except his snitch, Sidney Thurston. After HSB was canceled,
Franz and Peter Jurasick (who played Sid) co-starred in a
short-lived "dramedy" called Beverly Hills Buntz in which
Buntz (who was kicked off the force in the HSB finale) and Sid
moved to Beverly Hills to start a private investigation