Sex and the Citystar Willie Garson has died. He was 57.

Garson played Stanford Blatch, the best friend ofSarah Jessica Parker’s Carrie Bradshaw, in HBO’sSex and the Cityand its spinoff movies. He is set to appear in the upcoming reboot,And Just Like That….

In a statement to PEOPLE, a spokesperson for HBO/HBO Max says Garson was a “bright light” for those who were fortunate enough to know him.

For more on Willie Garson and other top stories, listen below toour daily podcast PEOPLE Every Day.

“Willie Garson was in life, as on screen, a devoted friend and a bright light for everyone in his universe. 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.”

He was photographed on the New York set of the spinoff with Parker, 56, and Mario Cantone, who played Garson’s on-screen husband Anthony Marentino.

CHANCE YEH /getty

Willie Garson

He was last active on social media on September 4,tweeting, “BE KIND TO EACH OTHER……ALWAYS. LOVE TO ALL. APRROACH [sic] KINDNESS.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Garson’s son Nathenshared a heartbreaking tributeto his dad on Instagram Tuesday, calling him “the toughest and funniest and smartest person I’ve known.”

“I love you so much papa. Rest In Peace and I’m so glad you got to share all your adventures with me and were able to accomplish so much,” Nathen wrote alongside a carousel of photos of Garson. “I’m so proud of you.”

“I will always love you, but I think it’s time for you to go on an adventure of your own,” Nathen continued. “You’ll always be with me. Love you more than you will ever know and I’m glad you can be at peace now. You always were the toughest and funniest and smartest person I’ve known. I’m glad you shared you’re love with me. I’ll never forget it or lose it ❤️😘”

source: people.com