Al Waxman co-starred as Cagney and Lacey 's good - natured and sometimes blustery supervisor, Lt. Bert Samuels. Carl Lumbly and Martin Kove played, respectively, fellow detectives Marcus Petrie and Victor Isbecki. Sidney Clute played veteran detective Paul La Guardia. John Karlen co-starred as Mary Beth 's husband, Harvey Lacey, and Tony La Torre and Troy Slaten played their sons, Harvey Lacey, Jr. and Michael Lacey, respectively. Harvey Atkin played desk sergeant Ronald Coleman. Jason Bernard originally had the recurring role of Deputy Inspector Marquette during the first two seasons. When the show was brought back in March 1984 following its second cancellation, Marquette had been replaced by Dep. Inspector Knelman (Michael Fairman), who lasted the duration of the series. In the fourth season, Christine entered into a relationship with Sgt. Dory McKenna (Barry Primus), who battled a drug addiction. After a tumultuous courtship, Christine left him and soon after took up with a more stable suitor, David Keeler (Stephen Macht), a local attorney.
who played lacey's husband in cagney and lacey
John Karlen