Willie Garson's cause of death was pancreatic cancer. The Sex and the City actor, who recently reprised his role as Stanford Blatch for the upcoming reboot And Just Like That..., passed away on September 21 at the age of 57. It's not known how long Willie was battling the illness for, but Garson's cause of death was confirmed in an obituary published in the New York Times on Thursday. RIP: Willie Garson's cause of death was pancreatic cancer, as confirmed by the actor's obituary on Thursday; pictured July 24 'William Garson Paszamant, better known as Willie Garson to his many fans and throughout the entertainment industry, noted actor of stage, film, and television, has died at age 57 at his home in Los Angeles. The cause was pancreatic cancer,' read the star's obituary. It also included details about what Garson's family would like from fans in his honor. 'In lieu of flowers, the family requests that any donations to be made in his name go to the Alliance for Children's Rights,' penned the grieving family. The Alliance for Children's Rights aims to 'protect the rights of children in poverty and those overcoming abuse and neglect by delivering free legal services, supportive programs, and systemic solutions.' RIP: Garson passed away at the age of 57 on Tuesday, September 21. It was confirmed by his 20-year-old son Nathan, who he adopted in 2009; Willie and Nathen pictured in 2019 Iconic role: Garson famously played the role of Stanford 'Stanny' Blatch, who was the male BFF to Sarah's Carrie Bradshaw on the series that spanned from 1998 to 2004. He starred in 27 of the show's 98 episodes; Willie and Sarah pictured in 1998 Willie has been devoted to bettering the lives of children in the United States' foster care system, often holding/participating in fundraisers aimed at aiding adoption efforts. Garson adopted his only child, son Nathen, in 2009. Nathen, now 20-years-old, confirmed his father's tragic passing via Instagram on Tuesday, September 21. Nathen penned a heartfelt tribute to his late father on Instagram, which included some of his favorite memories of Garson. '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. I’m so proud of you,' he began. 'You'll always be with me': Nathen penned a heartfelt tribute to his late father on Instagram, which included some of his favorite memories of Garson 'I will always love you, but I think it’s time for you to go on an adventure of your own. 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,' Nathen concluded. Garson boasts 170 acting credits, but his best known for his memorable portrayal of 'gay talent agent' Stanford 'Stanny' Blatch in the HBO series Sex And The City. Willie appeared in 27 of the series' 98 episodes, which spanned from 1998 until its finale in 2004. He also appeared in the first Sex And The City feature film in 2008, as well as its sequel, titled Sex And The City 2, in 2010. Just two months prior to his death, Willie was spotted filming a scene with Sarah on the set of the forthcoming SATC reboot, titled And Just Like That..., in New York City. The reboot, which is expected to premiere on HBO Max later this year, is supposed to catch fans up on the lives of the series' characters and how they've evolved since the events of Sex And The City 2. On July 24, Willie and series lead Sarah Jessica Parker were also joined on set by costar Mario Cantone, who plays event planner Anthony Marentino in the beloved HBO series and subsequent revival. During the shoot, Garson could be seen placing a kiss on Parker's face as they performed their lines out front of the Lyceum Theater. He was last photographed filming for the reboot on August 3. Speaking to Us Weekly in June, Willie expressed his excitement over figuratively and literally 'stepping into the shoes [of Stanford Blatch] again' after so many years. 'It was great. I was just telling my friends … that I probably was wearing about $200,000 worth of clothing yesterday,' speaking of his first day on set. 'And it was right away. It's like, "Oh, this is us, here we are."' Since the news of his passing broke, Kristin Davis, Cynthia Nixon, and former SATC player Kim Cattrall have issued social media statements in honor of Garson, many of which included their favorite snapshots of and with the late star. Cynthia called Willie 'a source of light,' while Cattrall deemed his death 'a terribly sad loss to the SATC family.' All rights reserved for this news site (dailymail) and under his responsibility