<Li> Vince D'Angelo, played by Bobby Cannavale . An Italian - American police officer, Vince first met Will after giving Karen a ticket for speeding and they started dating after the subsequent hearing . Vince was friends with Joe and Larry and began Will's first long - term relationship in the series' run . Vince broke up with Will, requesting time alone after repeatedly losing his job . He re-encountered Will in season 8 and, during the funeral of Will's father, they acknowledged their mutual feelings, thus rekindling their romance . In the finale, Will and Vince are shown to raise a son, Ben, together . </Li> <Li> Marilyn Truman, Will's mother, is played by Blythe Danner . A typical WASP, Marilyn regularly drinks, collects Lladró statues and treats them as if they were her children, and put up with her husband's regular affairs until their ultimate separation . She is not a fan of musical theater--once claiming that Les Misérables was unrealistic because "poor people don't sing that much"--but was impressed with Mamma Mia! . She does not like the jokes Grace and Karen make about Will's sexuality, saying, "Is that a gay joke? I don't like that ." </Li> <Li> George Truman, Will's father, is played by Sydney Pollack . While he and Will have a close loving relationship, of which both Jack and Grace are envious, it is eventually revealed that he had trouble dealing with telling others of his son's sexuality, initially telling his friends Will was married to Grace . He dies in season 8, only days after having a fight with Will in which he admitted he would rather that Will was not gay . </Li> <Li> Sam Truman, Will's brother, is played by John Slattery in season one and Steven Weber in season 8 . He had a falling - out with Will over comments Will made about his wife, but reconciled after he had a one - night stand with Grace . He eventually divorced his wife and gained full custody of their two children . </Li>

Who plays will's dad on will and grace