He further paid tribute to the late actor in an Instagram post, saying: “It is with immense sadness that we let you know our beloved James Lee Williams - The Vivienne, has passed this weekend”.
The post stated Williams' family were “heartbroken at the loss of their son, brother and uncle,” and were “so proud of the wonderful things James achieved in their life and career”.
“We please ask that James’ family are given the time and privacy they now need to process and grieve.”
Williams won the first series of RuPaul’s Drag Race UK in 2019, gaining fame for their love of wearing Vivienne Westwood clothing.
In a statement posted to X/Twitter, RuPaul’s Drag Race said Williams’ “talent, humour, and dedication to the art of drag was an inspiration”.
Show judge Michelle Visage also called the star “a beacon to so many,” in a heartfelt social media post.
“Your laughter, your wit, your talent, your drag. I loved all of it but I loved your friendship most of all.”
Theatre director Thom Southerland, who recently worked with Williams during a UK Chitty Chitty Bang Bang tour, also paid tribute to the actor.
“We have lost one of the most talented and truly exceptional people. Proud to have known you. Love you,” he said.
Williams also recently performed as the Wicked Witch of the West in a UK and Ireland tour of The Wizard Of Oz musical and reprised the role in the West End last year.
An official cause of death for the actor has not been shared.