William Garson Paszamant was born in Highland Park, New Jersey, on February 20, 1964, the son of Muriel (née Schwartz) and Donald M.

[5] Garson had a recurring role as Henry Coffield on NYPD Blue and as Stanford Blatch on Sex and the City.

[6] His other television appearances include Mr. Belvedere,[7] My Two Dads, Coach, Quantum Leap (once as a newspaper salesman/hack writer, and once as Lee Harvey Oswald), Twin Peaks, Monk, Boy Meets World, Girl Meets World (playing four different characters in the latter two shows' universe), Ally McBeal, Party of Five, Star Trek: Voyager, Special Unit 2, Just Shoot Me!, Ask Harriet, Buffy the Vampire Slayer, Friends (as Ross Geller's neighbor in the episode "The One With the Girl Who Hits Joey"), The X-Files (twice and as two different characters), Cheers (as a waiter in the episode "Cape Cad"), Yes, Dear, CSI: Crime Scene Investigation, Pushing Daisies, Stargate SG-1 (3 episodes), Wizards of Waverly Place, CSI: Miami, Mental, Spin City, and Taken.

His other film credits include Groundhog Day, Just Like Heaven, The Rock,[7] Fortress 2: Re-Entry, Being John Malkovich,[7] Freaky Friday, Labor Pains, and Out Cold.

[11] Garson died from pancreatic cancer at his home in Los Angeles, California, on September 21, 2021, at age 57.