Willie Garson, the actor best known for his roles on Sex and The City and White Collar, has died. Garson had been suffering from pancreatic cancer, People confirmed. He was 57.

Garson was most famous for playing talent agent Stanford Blatch, a friend of Carrie Bradshaw’s (Sarah Jessica Parker) on Sex and The City; he reprised the role in both of the SATC films, and had recently been filming for HBO Max's upcoming revival, And Just Like That.

“The Sex and the City family has lost one of its own. Our amazing Willie Garson,” Michael Patrick King, executive producer of SATC and And Just Like That, said in a statement. “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. His multitude of gifts as an actor and person will be missed by everyone. In this sad, dark moment we are comforted by our memory of his joy and light.”

“Willie Garson was in life, as on screen, a devoted friend and a bright light for everyone in his universe,” HBO/HBO Max said in a statement. “He created one of the most beloved characters from the HBO pantheon and was a member of our family for nearly twenty-five years. We are deeply saddened to learn of his passing and extend our sincere condolences to his family and loved ones.”

Garson made his last tweet on September 4th:

Born in Highland Park, N.J., Garson started his career with small appearances on various '80s TV series, including Cheers, Family Ties, and Newhart. In the '90s, he made appearances on an even wide array of shows including the likes of NYPD Blue, Boy Meets World, L.A. Law, The X-Files, Friends, Twin Peaks, Melrose Place, Buffy the Vampire Slayer and Ally McBeal. He also appeared in movies including Groundhog Day, Kingpin, There’s Something About Mary, Mars Attacks!, The Rock, Freaky Friday, Fever Pitch and Being John Malkovitch.

In more recent years, he played conman Mozzie on USA Network’s White Collar from 2009 to 2014; he was in John From Cincinnati, Supergirl, and the recent Hawaii Five-0 remake; and he played doorman Ralph in Little Manhattan.

Below, you can see various tributes to Garson from his former SATC costars and White Collar costars, as well as his son Nathen.