He appeared in 98 episodes (95 episodes of Law & Order and three episodes of Homicide: Life on the Street). He also appeared in Exiled: A Law & Order Movie. Curtis is introduced as a homicide detective in the New York Police Department, the junior partner of Lennie Briscoe (played by Jerry Orbach) in Manhattan's 27th Detective Squad. In contrast with his predecessor, Mike Logan, Curtis -- a conservative, devout Catholic -- does his job by the book, and views it in black and white terms:
Mike Logan
Curtis