Johnny Gavin is a fictional character on the FX drama series Rescue Me. The character was played by Dean Winters. Johnny is Tommy Gavin's (Denis Leary) younger brother. He is a well-connected detective in the NYPD, who reluctantly helps Tommy out in terms of getting him out of trouble with the law and providing information to Tommy when asked. He has an ex-wife named Angie (Marisa Tomei) and two daughters, who have not been seen in the series. It is mentioned that one of the daughters is in reform school. During the first season, Johnny helps Tommy mess with Janet's new boyfriend during her separation from Tommy by arranging for his car to be repossessed and his credit cards to be canceled. Johnny encourages Tommy to call their father, Michael Gavin (Charles Durning), especially after Mich