Susan Backlinie, famously known as the first victim in the 1975 film, “Jaws,” has died, Fox News Digital can confirm.

Her husband of 30 years, Harvey Swindall, says her passing was “very unexpected.”

She died at their California home on Saturday morning from a heart attack. She was 77.

“[She] was the most amazing person I’ve ever met in my life. And I’ve never loved anybody like her,” Swindall said.

Backlinie earned the role of Chrissie in Steven Spielberg’s film not only for her enviable looks, but also because she was a nationally ranked swimmer who had worked as a mermaid and animal trainer after graduating from high school in 1964.

“I didn’t want an actor to do it. I wanted a stuntperson because I needed somebody who was great in the water, who knew water ballet and knew how to endure what I imagined was going to be a whole lot of violent shaking,” Spielberg recounted in Laurent Bouzereau’s book, “Spielberg: The First Ten Years,” per The Hollywood Reporter. “So, I went to stunts to find her, and Susan was up to the challenge.”

In an interview with The Palm Beach Post in 2017, Backlinie spoke about Spielberg’s vision for what has now become an iconic scene. “The first thing [Spielberg] said to me was, ‘When your scene is done, I want everyone under the seats with the popcorn and bubblegum,’” she shared. “So I think we did that.”