ap photo In this 2010 file photo, actor Ed Asner arrives during the 82nd Academy Awards in the Hollywood section of Los Angeles.

LOS ANGELES — Ed Asner, the burly and prolific character actor who became a star in middle age as the gruff but lovable newsman Lou Grant, first in the hit comedy “The Mary Tyler Moore Show” and later in the drama “Lou Grant,” died Sunday. He was 91.

Asner’s representative confirmed the actor’s death in an email to The Associated Press. Asner’s official Twitter account included a note from his children: “We are sorry to say that our beloved patriarch passed away this morning peacefully. Words cannot express the sadness we feel. With a kiss on your head- Goodnight dad. We love you.”

Built like the football lineman he once was, the balding Asner was a journeyman actor in films and TV when he was hired in 1970 to play Lou Grant on “The Mary Tyler Moore Show.” For seven seasons he was the rumpled boss to Moore’s ebullient Mary Richards (He called her “Mary,” she called him “Mr. Grant”) at the fictional Minneapolis TV newsroom where both worked. Later, he would play the role for five years on “Lou Grant.”

Asner’s character had caught on from the first episode of “Mary Tyler Moore,” when he told Mary in their initial meeting, “You’ve got spunk. … I hate spunk!” The inspired cast included Ted Knight as Ted Baxter, the dimwitted news anchor; Gavin MacLeod as Murray Slaughter, the sarcastic news writer; and Betty White as the manipulative, sex-obsessed home show hostess Sue Ann Nivens. Valerie Harper and Cloris Leachman, playing Mary’s neighbors, both saw their characters spun off into their own shows.

Asner is the third “Mary Tyler Moore” alum to die in recent months. Leachman died in January and MacLeod died in May.

The 99-year-old White is the lone surviving main cast member from “Mary Tyler Moore.”

“Mary Tyler Moore” was still a hit when the star decided to pursue other interests, and so it was brought to an end in the seventh season with a hilarious finale in which all of the principals were fired except for the bumbling Baxter.

Asner went immediately into “Lou Grant,” his character moving from Minneapolis to Los Angeles to become city editor of the Tribune, a crusading newspaper under the firm hand of Publisher Margaret Pynchon, memorably played by Nancy Marchand.

Asner won three best supporting actor Emmys on “Mary Tyler Moore” and two best actor awards on “Lou Grant.” He also won Emmys for his roles in the miniseries “Rich Man, Poor Man” (1975-1976) and “Roots” (1976-1977).

He had more than 300 acting credits and remained active throughout his 70s and 80s in a variety of film and TV roles. In 2003, he played Santa Claus in Will Ferrell’s hit film “Elf.” He was John Goodman’s father in the short-lived 2004 CBS comedy “Center of the Universe” and the voice of the elderly hero in the hit 2009 Pixar release, “Up.” More recently, he was in such TV series as “Forgive Me” and “Dead to Me.”

Nonetheless, Asner told The Associated Press in 2009 that interesting roles were hard to come by.

“I never get enough work,” he said. “It’s the history of my career. There just isn’t anything to turn down, let me put it that way.”

“I’d say most people are probably in that same boat, old people, and it’s a shame,” he said.

As Screen Actors Guild president, the liberal Asner was caught up in a political controversy in 1982 when he spoke out against U.S. involvement with repressive governments in Latin America. “Lou Grant” was canceled during the furor that followed and he did not run for a third SAG term in 1985.