HARTFORD, Conn. — Richard Widmark, who made a sensational film debut as the giggling killer in “Kiss of Death” and became a leading man in “Broken Lance,” “Two Rode Together” and 40 other films, died at his home in Roxbury after a long illness. He was 93.

Widmark’s wife, Susan Blanchard, said he died Monday. She would not provide details of his illness and said funeral arrangements are private.

“It was a big shock, but he was 93,” Blanchard said.

Widmark earned an Academy Award nomination for best supporting actor for his role in the 1947 thriller “Kiss of Death.” He played Tommy Udo, who delighted in pushing an old lady in a wheelchair down a flight of stairs to her death. It was his only Oscar nomination.

“That damned laugh of mine!” he told a reporter in 1961. “For two years after that picture, you couldn’t get me to smile. I played the part the way I did because the script struck me as funny and the part I played made me laugh. The guy was such a ridiculous beast.”

Actress Shirley Jones, who appeared with Widmark and James Stewart in “Two Rode Together” and became a good friend, said she was devastated about Widmark’s death.

“He was a down-to-earth guy, and I respected him for that,” Jones said in a phone interview from Los Angeles. “He was a real guy, but he was such a wonderful actor.”

A.C. Lyles, a producer with Paramount Pictures, worked with Widmark on the 1975 western “The Last Day.”

“Dick was just one of the nicest guys I ever worked with: very, very professional, very, very prepared and he couldn’t have been more cooperative,” Lyles said.

“He would have little comments to make during rehearsal about a scene and it was never a suggestion that would enhance him,” he said. “It was always to enhance someone else in the scene and I thought that was very courageous of him.”

A quiet, inordinately shy man, Widmark often portrayed killers, cops and Western gunslingers. But he said he hated guns.

“I know I’ve made kind of a half-assed career out of violence, but I abhor violence,” he remarked in a 1976 Associated Press interview. “I am an ardent supporter of gun control. It seems incredible to me that we are the only civilized nation that does not put some effective control on guns.”

Widmark was born Dec. 26, 1914, in Sunrise, Minn., where his father ran a general store, then became a traveling salesman. The family moved to Sioux Falls, S.D., Henry, Ill., and Chillicothe, Mo., before settling in Princeton, Ill.

“Like most small-town boys, I had the urge to get to the big city and make a name for myself,” he recalled in a 1954 interview.

“I was a movie nut from the age of 3, but I don’t recall having any interest in acting,” he said.