Marty Krofft, Co-Creator of “H.R. Pufnstuf” and “Land of the Lost”, Dead at 86

Krofft died of kidney failure on Saturday, according to a family representative

Marty Krofft, co-producer of the children's television classics H.R. Pufnstuf and Land of the Lost, has died at the age of 86.

The businessman, who worked on the programs alongside older brother and creative partner Sid Krofft, died of kidney failure on Saturday in Los Angeles, a family representative confirmed to PEOPLE.

Marty, who held the nickname "King of Saturday Mornings," worked on family entertainment and primetime programming for more than 50 years. He and Sid first collaborated on H.R. Pufnstuf.

Related: Billie Hayes, Actress Who Played Witchiepoo in 'H.R. Pufnstuf', Dead at 96

The live-action series debuted on NBC in 1969 before getting a second life via reruns on ABC and elsewhere in the 1970s and beyond. The show also spawned the 1970 feature adaptation Pufnstuf.

The brothers — who were born in Montreal, Quebec, and first crafted costumes for Hanna-Barbera's Banana Splits — eventually went on to create Land of the Lost, which premiered on NBC in 1974 and later aired as reruns on other networks.

The show, which spanned 43 episodes, ran for three seasons on NBC, according to IMDB. It followed the story of a family who lived in an earth ruled by dinosaurs and other beings. Land of the Lost eventually appeared on the big screen in 2009, thanks to a film adaptation starring Will Ferrell.

While Marty was best known for his work on children's television — including other hits such as The Bugaloos, Lidsville, Sigmund & the Sea Monsters and Pryor’s Place starring Richard Pryor — he also had several primetime hits under his belt. The producer was responsible for series such as D.C. Follies, the Donny & Marie Show, The Brady Bunch Hour and Barbara Mandrell & the Mandrell Sisters.

Marty's extensive career also included the 1976 opening of the World of Sid & Marty Krofft amusement park in Atlanta, his work on the All in the Family TV set, and the creation of 25-foot-high puppets for *NSYNC at the 2000 American Music Awards, according to a family representative.

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The Krofft brothers earned the Lifetime Achievement Emmy Award from the National Academy of Television Arts & Sciences in 2018, as well as a star on the Hollywood Walk of Fame in 2020.

Several friends and fans have shared memories of Marty on social media, including Brady Bunch star Maureen McCormick, who tweeted a photo of herself and the producer at his Walk of Fame ceremony.

"Rest In Sweet Peace Marty Krofft. Thank you for all the joy. You are in my [heart] forever," she wrote. "Love to Marty’s family and friends."

In an interview for the Hsu Untied podcast earlier this year, Marty joked that the "biggest highlight" of his career was that he's "been running this thing for 50 years, and I'm still above the grass."

"So that's a big highlight. There were really so many things beyond the shows and the movies... Is there a favorite? I just have a tough time with that one."

Marty is survived by brothers Sid and Harry Krofft, three daughters, five grandchildren and three great-grandchildren. The family has not announced a service, and requests that donations be made to Marleys Mutts in honor of Marty.

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