Willie Garson, the actor best known for his role as Carrie Bradshaw’s best male friend on the hit HBO series “Sex and the City,” died Sept. 21 at his home in Los Angeles. He was 57.

Mr. Garson also drew attention for his role on the USA Network crime series “White Collar” (2009-2014) and also appeared in the films “Kingpin” (1996), “There’s Something About Mary” (1998), and “Fever Pitch” (2005). He played Lee Harvey Oswald three times, in the film “Ruby” (1992) and on the TV shows “Quantum Leap” and “MADtv.” Mr. Garson was slated to reprise the role of Sanford Blatch in the coming “Sex and the City” reboot.