Willie Garson, best known for playing Stanford Blatch on Sex and the City, passes away at 57

Willie Garson, who was best known for playing Stanford Blatch on HBO's Sex and the City and Mozzie in White Collar, passed away on Tuesday at the age of 57. 

The news of his death was confirmed by his son, Nathen, in an Instagram post. 

According to The Guardian, the cause of his death has not been disclosed, but Sex and the City and And Just Like That's executive producer Michael Patrick King said in a statement that the actor had not been keeping well. 

"His spirit and his dedication to his craft was present every day filming And Just Like That. He was there – giving us his all – even while he was sick," reads a portion of the statement. 

HBO also condoled the Garson's passing and said that he had "created one of the most beloved characters from the HBO pantheon."

In Sex and the City, Garson played Carrie Bradshaw's (Sarah Jessica Parker) male best friend Stanford, and one of the only openly gay characters on the show besides Anthony Marentino (Mario Cantone).

Garson later reprised the role in the feature films Sex and the City and Sex and the City 2, and had been filming the show's revival for HBO Max. 

He also played Mozzie on White Collar, led by Matt Bomer, from 2009 to 2014. 

In his TV career, he has been a part of many popular shows like Friends, Buffy the Vampire Slayer, X-Files, Twin Peaks among others. Some of his movie credits include There’s Something About Mary, Being John Malkovich, and Groundhog Day.

Variety writes that the actor had recently lent his voice to Netflix's animated series Big Mouth. Besides And Just Like That on HBO Max, his other upcoming project is Duke of the Valley, starring Caitlyn Jenner and Duke Van Patten.