Beverly Hills, Calif. ? Actor Glenn Ford, who played strong, thoughtful protagonists in films such as “The Blackboard Jungle,” “Gilda” and “The Big Heat,” died Wednesday, police said. He was 90.

Paramedics called to Ford’s home just before 4 p.m. found Ford dead, police Sgt. Terry Nutall said, reading a prepared statement. “They do not suspect foul play,” he said.

Ford suffered a series of strokes in the 1990s.

“It comes to mind instantly what a remarkable actor he was,” actor Sidney Poitier, who also starred in “The Blackboard Jungle,” said Wednesday evening. “He had those magical qualities that are intangible but are quite impactful on the screen. He was a movie star.”

Failing health forced Ford to skip a 90th birthday tribute on May 1 at Hollywood’s historic Grauman’s Egyptian Theatre. But he did send greetings via videotape, adding, “I wish I were up and around, but I’m doing the best that I can…. There’s so much I have to be grateful for.”

At the event, Shirley Jones, who co-starred with him in the comedy “The Courtship of Eddie’s Father,” called Ford “one of the cornerstones of our industry, and there aren’t many left.”

This 1998 family photo shows actor Glenn Ford. Ford, who starred in films including The

Ford appeared in scores of films during his 53-year Hollywood career. The Film Encyclopedia, a reference book, lists 85 films from 1939 to 1991.

He was cast usually as the handsome tough, but his acting talents ranged from romance to comedy. His more famous credits include “Superman,” “Gilda,” “The Sheepman,” “The Gazebo,” “Pocketful of Miracles” and “Don’t Go Near the Water.”

An avid horseman and former polo player, Ford appeared in a number of Westerns, “3:10 to Yuma,” “Cowboy,” “The Rounders,” “Texas,” “The Fastest Gun Alive” and the remake of “Cimarron” among them. His talents included lighter parts, with roles in “The Teahouse of August Moon” and “It Started With a Kiss.”

On television, he appeared in “Cade’s County,” “The Family Holvak,” “Once an Eagle” and “When Havoc Struck.” He starred in the feature film “The Courtship of Eddie’s Father,” which later became a TV series featuring Bill Bixby.

A tireless worker, Ford often made several films a year, Ford continued working well into his 70s. In 1992, though, he was hospitalized for more than two months for blood clots and other ailments, and at one point was in critical condition

After serving with the Marines during World War II, Ford starred in 1946 as a small-time gambler in “Gilda,” opposite Rita Hayworth.

The film about frustrated romance and corruption in postwar Argentina became a film noir classic. Hayworth plays Ford’s former love, a sometime nightclub singer married to a casino operator, and she sizzles onscreen performing “Put the Blame on Mame.”

Ford speaks the memorable voiceover in the opening scene: “To me a dollar was a dollar in any language. It was my first night in the Argentine and I didn’t know much about the local citizens. But I knew about American sailors, and I knew I’d better get out of there.”

Two years later he made “The Loves of Carmen,” also with Hayworth. “It was one of the greatest mistakes I ever made, embarrassing,” Ford said of the latter film. “But it was worth it, just to work with her again.”

One of his best-known roles was in the 1955 “The Blackboard Jungle,” where he portrayed a young, soft-spoken teacher in a slum school who inspires a class full of juvenile delinquents to care about life.

He married actress-dancer Eleanor Powell in 1943; the two divorced in 1959. They had a son, Peter. A 1965 marriage to actress Kathryn Hays ended quickly. In 1977, he married model Cynthia Hayward, 32 years his junior. They were divorced in 1984.