Harry Morgan is shown in a photo taken on June 1, 1978. (Credit: AP)

LOS ANGELES (CBS/AP) - Harry Morgan, who played the gruff-but-lovable Col. Sherman T. Potter on the long-running series "M*A*S*H," has died. He was 96.

His daughter-in-law, Beth Morgan, says the actor died at his home in Brentwood after suffering from pneumonia.

Morgan appeared in mostly supporting roles on the big screen, playing opposite such stars as Henry Fonda, John Wayne, James Garner, Elvis Presley and Dan Aykroyd.

On television, he was more the comedic co-star. His roles included playing Officer Bill Gannon, Sgt. Joe Friday's loyal partner, in the revived version of "Dragnet" from 1967-1970, Pete Porter in both "December Bride" and its spin-off "Pete and Gladys."

But it was his role as Col. Sherman Porter on "M-A-S-H" for which Morgan became best known. He first appeared on the show in 1975, when he replaced McLean Stevenson, until it went off the air in 1983.

In an interview for the Archive of American Television, Mr. Morgan said of his role: "He was firm. He was a good officer and he had a good sense of humor. I think it's the best part I ever had. I loved playing Colonel Potter."

Other shows he made guest appearances on include "The Love Boat," "3rd Rock from the Sun," "Murder, She Wrote" and "The Jeff Foxworthy Show." He also reprised his role as Gannon for an episode of "The Simpsons."

Morgan is survived by his second wife, Barbara Bushman (he was married to Eileen Detchon from 1940 until her death in 1985), three sons from his first marriage and eight grandchildren, according to the New York Times. A fourth son died in 1989.