Actor Alec Musser, famous for his roles in "All My Children" and "Grown Ups," passed away on Saturday, Fox News Digital can confirm. He was 50 years old.

His fiancée, Paige Press, says Musser was suffering from "a severe case of Covid," and believes he died from the illness. He was both vaccinated and boosted. She says he died at their home in Del Mar, California.

Press confirmed that an autopsy would be conducted.

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Alec Musser smiles in a light aqua shirt

Alec Musser passed away at his home in Del Mar, California on Saturday January 13. (Michael Bezjian/WireImage/Getty Images)

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"He was a very healthy person. I mean he took exceptional care of his body and what went into it. …He'd eat some cookies and that was the worst thing I ever saw him do."

"Alec was a wonderful man. He was the best fiancé. The best dog dad. Very kind hearted person," Press said of Musser, whom she got engaged to a little over a year ago. "Seeing how many messages and people have reached out to me from his childhood…In the last couple of days, people I’ve never even met, sending me photos from him from high school and when he was in there wedding…He was so loved and touched by so many people."

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Alec Musser in a very light olive colored shirt smiles on the carpet

Alec Musser starred alongside Adam Sandler in the film, "Grown Ups." The comedian shared his condolences upon learning the actor had passed. (Jim Spellman/WireImage/Getty Images)

Press says the couple had not chosen a wedding date, but that planning was on the horizon. 

Actor Adam Sandler, whom Musser worked with on the 2010 film "Grown Ups," shared his condolences with the family. "I loved this guy," Sandler wrote alongside a frame of Musser in the flick to his Instagram. "Cannot believe he is gone. Such a wonderful, funny good man. Thinking of Alec Musser and his family and sending all my love. A true great sweetheart of a person."

Press added that some kind of service, perhaps on the beach, would take place in the future. 

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Paige Press and Alec Musser and their dogs in two separate pictures

Paige Press shared personal photos of her and fiancé Alec Musser with Fox News Digital. (Courtesy of Paige Press)

In addition to acting, Musser was also a model. Born on the East Coast, he eventually moved to California and attended the University of San Diego.