<Li> Dr. Marvin "Leo" Markus, portrayed by actor and singer Harry Connick, Jr., is a Jewish doctor and Grace's husband from the fifth season . Leo meets Grace Adler in Central Park while she is on her way to be artificially inseminated with gay best friend Will's baby . After Will finds out that Leo and Grace are dating, they have their biggest fight of the entire series, in which Will tells Grace to move out . Thanks to Jack and Karen's meddling, they forgive each other and Will accepts Grace's relationship . In November, 2002, Grace and Leo are married at a spontaneous group ceremony in Central Park, which was supposed to be broadcast on The Today Show . It was later revealed in the storyline that the ceremony was not legal, but the two officially marry at a ceremony soon after . Leo and Grace's relationship was a constant source of tension between Will and Grace, although they eventually achieved a certain accord with each other--Leo even commenting to Will at one point that he considered himself essentially married to both of them due to his ability to accept their close relationship . Leo's true first name is Marvin, as revealed by his mother at their wedding reception . According to The Nation Magazine, this was the first time in television history that a Jewish protagonist character had married inside the faith . Grace immediately realizes she does not know as much about Leo as she expected . Their marriage fails after less than two years, when Leo reveals that he had a one - night stand while working in Cambodia for Doctors Without Borders . Leo admits his affair to Will first . Will then refuses to help Leo break the news to Grace . After Leo comes clean about his affair, Grace briefly considers continuing their marriage, but quickly decides she wants a divorce . Leo reappears during season eight, a little over a year after the divorce in the storyline, in the episode "Love Is in the Airplane ." In the episode, he and Grace have a sexual encounter on an airplane after coincidentally ending up on the same flight to London, though Leo was to continue to Thailand . The result is Grace's pregnancy, as discovered in the season eight episode "The Definition of Marriage". A couple of months later Grace meets Leo, with the intention of telling him that she is pregnant with his baby, but he informs her that he is engaged to another woman, Kate . Consequently, Grace decides not to tell Leo about the pregnancy . In the series finale (May 2006) Leo tells a heavily pregnant Grace that he loves her . Leo has a job as a hospital researcher in Rome, Italy, and this is where Grace gives birth . After one year in Rome, Leo and Grace move back to Brooklyn, New York, where they raise their daughter, Laila, together . 11 years later in season 9 it was revealed that this was part of Karen's dream . </Li> <Li> Bobbi Adler, Grace's mother, was played by Debbie Reynolds . Bobbi is an actress and singer, although her performances are generally with the Schenectady Players and involve gender changing roles, in plays such as "Death of a Salesperson", "The Music Person" and "Queen Lear". She has a constant desire to meddle in the love lives of her daughters, is the creator of the Adler family "Told you so" dance, and can always be relied upon to have a song for every occasion . She has, in the past, shown a perfect willingness for Will and Grace to get married . It is mentioned in Season 9 episode "Rosario's Quinceañera" that she died . </Li> <Li> Martin Adler, Grace's father, played by Alan Arkin and Robert Klein in Season 9 . Portrayed by his family as the stereotypical Jewish patriarch, Martin shows genuine affection for Grace, although remarks he has made suggest Joyce is his favorite . He has been known to pinpoint Grace's flaws without looking up from his Kojak and Baretta reruns . </Li> <Li> Janet Adler, Grace's older sister, is played by Geena Davis and Mary McCormack in Season 9 . Janet lives in a van and designs jewelry . Her nickname for Grace is "Smudge". It is once implied that she has difficulties with her mother . In the episode "Lows in the Mid-Eighties", Will asks if Grace has another sister named Janet, to which Bobbi, Joyce, and Grace quickly answer "No!" </Li>

Who plays martin adler on will and grace