Sid Krofft, the visionary entertainer from Canada who, alongside his brother Marty, crafted iconic television series like the 1960s children’s classic “H.R. Pufnstuf,” has passed away at the age of 96.

Krofft’s passing, which follows three years after his brother Marty’s death, was shared through Instagram by his friend and business partner, Kelly Killian. The announcement did not provide further specifics regarding his passing.

“For the last six years, Sid was my main focus, and I was his,” Killian expressed. “During this period, he imparted invaluable lessons to me about Hollywood’s artistry, theatrical magic, and the complexities of human nature. I deeply wish we had more time together.”

The Krofft brothers were instrumental in bringing to life a variety of cultural figures, from the bumbling Weenie the Genie to the famous duo Donny and Marie Osmond.

For many television enthusiasts, “H.R. Pufnstuf” left a lasting impression. The live-action puppet show featured a catchy theme song and followed the whimsical adventures of a dragon, who was also the Mayor of Living Island, along with characters such as the mischievous witch Wilhelmina W. Witchiepoo and her magical Vroom Broom. Although “H.R. Pufnstuf” aired just 17 episodes in 1969, its charm endured, securing a place in syndication and ranking 27th in TV Guide’s 2007 poll of top cult favorites.

The Kroffts also produced other memorable shows such as “Land of the Lost,” “Electra Woman and Dyna Girl,” and “Pryor’s Place,” starring comedian Richard Pryor. Despite critics speculating that the Kroffts’ vibrant children’s programming might have been drug-influenced—a claim the brothers consistently denied—they also created more mainstream fare like the wholesome “Donny & Marie” variety show from the 1970s.

The Kroffts received a Daytime Emmy for lifetime achievement in 2018, and a Hollywood Walk of Fame star two years later.