- - Fan-Favorite ‘90 Day Fiancé’ Star Dies Following Heartbreaking Cancer Battle

Jane LaCroixNovember 24, 2025 at 2:11 AM

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The 90 Day Fiancé community is mourning the loss of Chuck Potthast, the father of longtime cast member Elizabeth “Libby” Castravet.

Libby shared the news on Instagram, on Sunday, November 23, revealing that Potthast passed away on September 26, 2024, following a harrowing battle with glioblastoma, an aggressive form of brain cancer. He was surrounded by family as he died, leaving what relatives described as an immeasurable void. He was 64 years old.

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“Two weeks ago, tragedy struck our family and it has left us completely shattered,” she wrote. “My sweet, loving, and caring dad went to heaven. We’re trying to figure out how to navigate our lives and move forward without him. Please respect our privacy during this extremely difficult time.” The comments section has been turned off.

Another fan, however, shared the news on their own Instagram, which received plenty of comments.

“Damn it 😭 I really liked Chuck. He was one of the good ones,” one fan wrote.

Another agreed, “He was the best part of their story honestly. So sad.”

“He was such as a good Father to her,” a third shared, while a fourth said, “uggghhh poor chuck!!!! I actually liked him on the show. this is soooo sad may he rip.”

Potthast became a familiar face to 90 Day Fiancé fans through his Libby’s storyline, appearing frequently as she navigated her relationship and eventual marriage to Andrei Castravet. Viewers got to know him as the emotional, hands-on patriarch of a big, outspoken family — one whose protectiveness often placed him in the middle of heated arguments between the couple and several of Libby’s siblings.

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Off-screen, he shared on 90 Day Diaries that he had quietly been battling cancer back in 2022, Even during treatment, Potthast continued sharing lighthearted posts on social media — including videos goofing around with Andrei.

Just seven weeks prior, Potthast shared an update on his Instagram, posing all smiles as he spent the day out on the boat. “Boating with the family !!” he captioned the post, which featured photos of Libby, Andrei, and their children, Eleanor and Winston. The reality star loved sharing moments with his loved ones on social media.

This story was originally reported by Parade on Nov 24, 2025, where it first appeared in the News section. Add Parade as a Preferred Source by clicking here.

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Source: “AOL Entertainment”