Sex and the City star Willie Garson has died, aged 57.

The actor lost his battle with cancer on Tuesday.

Actor Titus Welliver was among the first people to pay tribute, taking to Instagram and writing: "There are no words. I love you dear brother. We are fewer."

Meanwhile, Garson's adopted son Nathan also honored his late dad, writing: "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.

"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 your love with me. I'll never forget it or lose it."

Garson played talent agent Stanford Blatch – the best friend of Sarah Jessica Parker's character Carrie Bradshaw – on the Sex and the City series and in the spin-off movies. He is set to appear in the upcoming reboot, And Just Like That…

He also appeared on the TV shows Cheers, Boy Meets World, Friends, The X-Files, L.A. Law, Melrose Place, Twin Peaks, White Collar, Whole Way Down, NYPD Blue, and Hawaii Five-O, among others, while his film credits include Kingpin, There's Something About Mary, Fever Pitch, Soapdish, Groundhog Day, and Being John Malkovich.

Willie also directed episodes of White Collar and Girl Meets World.

Born William Garson Paszamant in New Jersey, Garson studied theater at Wesleyan University and received a master of fine arts from Yale Drama School.