LOS ANGELES — James Darren, a teen idol who helped ignite the 1960s surfing craze as a charismatic beach boy paired off with Sandra Dee in the hit film “Gidget,” died Monday at age 88.

Darren died in his sleep at a Los Angeles hospital, his son Jim Moret told news outlets.

Moret told The Hollywood Reporter that Darren was supposed have had an aortic valve replacement but was too weak for the surgery.

In his long career, Darren acted, sang and built up a successful behind-the-scenes career as a television director, helming episodes of such well-known series as “Beverly Hills 90210” and “Melrose Place.” In the 1980s, he was Officer Jim Corrigan on the television cop show “T.J. Hooker.”

But to young movie fans of the late 1950s, he would be remembered best as Moondoggie, the dark-haired surfer boy in the smash 1959 release “Gidget.” Dee starred as the title character, a spunky Southern Californian who hits the beach and eventually falls in love with Moondoggie.

“I was in love with Sandra,” Darren later recalled. “I thought that she was absolutely perfect as Gidget. She had tremendous charm.”

The film was based on a novel that a California man, Frederick Kohner, had written about his own teenage daughter and helped spur interest in surfing — one that influenced pop music, slang and even fashion.

For Darren, his success with teen fans led to a recording contract, as it did with many young actors at the time, among them Tab Hunter and Annette Funicello. Two of Darren’s singles, “Goodbye Cruel World” and “Her Royal Majesty,” reached the Top 10 of the Billboard Hot 100 chart. Other singles included “Gidget” and “Angel Face.”

Darren was the only “Gidget” cast member who appeared in both its sequels, 1961’s “Gidget Goes Hawaiian” and 1963’s “Gidget Goes to Rome.” (“Gidget” later became a television show, launching the career of Sally Field.)

Darren appeared in grown-up films, too, including “The Brothers Rico,” “Operation Meatball” and “The Guns of Navarone.”

By the mid-1960s, when Darren appeared in “For Those Who Think Young” and “The Lively Set,” his big-screen acting career was almost over. He appeared in just a handful of movies after the 1960s ended, last appearing in 2017’s “Lucky,” directed by John Carroll Lynch.

But he remained active on television, appearing as a lead on the sci-fi show “The Time Tunnel” in the late 1960s, and doing guest spots and small recurring roles in TV shows such as “The Love Boat,” “Hawaii Five-O” and “Fantasy Island.”

Darren was a series regular for four seasons of the William Shatner-starrer “T.J. Hooker” in the 1980s. While appearing on the show, he noticed that no director was listed for an upcoming sequence and asked if he could try out for it.

“When it was shown, I got several offers to direct,” he told the New York Daily News.

For almost two years, Darren directed episodes of “Walker, Texas Ranger,” “Hunter,” “Melrose Place,” “Beverly Hills 90210” and other series. He returned to acting in the 1990s with small roles in “Melrose Place” and “Star Trek: Deep Space Nine.”

Darren was born James Ercolani on June 8, 1936, and grew up in South Philadelphia, not far from such fellow teen idols of the 1950s and ’60s as Fabian and Frankie Avalon.

Darren married his first wife, Gloria, in 1955 and together had Moret, an “Inside Edition” correspondent and former CNN anchorman. After a divorce, he married Evy Norlund, who came to the U.S. as the Danish entry in the Miss Universe contest. They had two sons, Christian and Anthony.

He was also the godfather of Nancy Sinatra’s daughter A.J. Lambert.