"Jack Killian is an ex-cop in San Francisco. He quit the police force after accidentally shooting his partner. He was approached by Devon King, the manager of a local radio station, and accepted a job as a talk-back host. Ever the humanitarian, Jack (together with his side-kick Billy Po) often gets personally involved with the plight of those who call his show." Series Complete credited cast: Gary Cole .... Jack 'Nighthawk' Killian Wendy Kilbourne .... Devon King (1988-1990) Dennis Dun .... Billy Po Arthur Taxier .... Lt. Carl Zymak rest of cast listed alphabetically: Peter Boyle .... J.J. Killian (1989-1991) Lisa Eilbacher .... Nicky Molloy (1990-1991) Steven Anthony Jones .... Inspector Slocum (1990-1991) Mykelti Williamson .... Deacon Bridges (1989-) (as Mykel T. Williamson) http://us.imdb.com/title/tt0094510/