The 4077th Mobile Army Surgical Hospital was home to one of television's most beloved ensemble casts. Over 11 seasons (1972-1983), the show featured a rotating cast of memorable characters who became cultural icons.
Benjamin Franklin "Hawkeye" Pierce (Alan Alda) - The heart and soul of the 4077. A brilliant surgeon with a sharp wit who used humor to cope with the horrors of war. He appeared in all 256 episodes and won five Emmys for his work. Hawkeye was the only character to appear in every episode of the series.
Alan Alda was initially reluctant to take the role. He was shooting a movie in Utah State Prison when he received the script: "It was the best comedy writing I'd ever seen in a half-hour script. It certainly brightened up my day in cell block 9. Right away, I knew I wanted to play in it." His main concern was that it would become "high jinks at the front"—a goofy show where war was just a pretext for silly stories. He met with producers Gene Reynolds and Larry Gelbart until 1 a.m. the night before rehearsals to ensure they shared his vision of making it reflect real people's lives.
On the show's success, Alda reflected: "I don't know if we ever really realized how successful the show was. We started out at the bottom of the ratings, and we just got used to concentrating on the work every day. For most of the first year, I'd proudly say, 'We're in the Top 72!'"
He credited the cast's bond for the show's authenticity: "For the first season, every Friday night we'd stay late and eat pizza and drink beer and end many Fridays in a circle airing our complaints to one another. We'd make real contact that was open and free so that when we'd be called to the set, the connection was still happening underneath the dialogue."
How did MASH change his life? "I became a better actor, better writer and learned how to direct. But more than that, it thrust all of us into something that was more important than we were."*
B.J. Hunnicutt (Mike Farrell) - Replaced Trapper John in Season 4. A devoted family man and skilled surgeon who formed an inseparable partnership with Hawkeye. His heartfelt letters to his wife Peg became a recurring emotional anchor.
Trapper John McIntyre (Wayne Rogers, Seasons 1-3) - The original Hawkeye's partner in pranks and surgery before leaving in a contract dispute after Season 3.
Frank Burns (Larry Linville, Seasons 1-5) - The pompous, incompetent executive officer whose rivalry with Hawkeye drove many storylines. Frank was universally despised by everyone at the 4077th—he was greedy, sanctimonious, a hypocrite, and had an incestuous affair with Margaret that he constantly tried to hide. He was the ultimate company man who had no sense of humor and served as the perfect foil to Hawkeye's irreverence.
Larry Linville played Frank Burns as a "straight man" to Hawkeye's insanity—an approach he described as "playing it straight for the sake of the show." He realized early on that audiences didn't need to see Burns react humorously to the chaos around him; instead, playing it straight made the comedy from Hawkeye and the others land harder.
Linville himself despised the character. "Frank is the type of character I personally despise," he told The Shreveport Journal in 1975. "He's the ultimate hypocrite... He's almost human but not quite. He has all the elements—he's intelligent because after all he did get through med school, and he does have sensitivity. But somewhere it all went wrong."
He was initially reluctant to take the role, thinking the character (originally played by Robert Duvall in the film) was too humorless. Producer Gene Reynolds convinced him: "We're going to have fun with this part."
After five years, Linville chose not to renew his contract. "I guess I was just tired of being the guy you loved to loathe," he explained to The Hamilton Spectator. "By then, my involvement with Major Frank Burns had run its course. It was time to move on."
The hatred from fans followed him off-screen: "People I'd never met lambasted me, thinking I was a pain-in-the-ass kind of guy. Actually, I think I'm quite nice. You just need to separate Larry from Frank." Despite that, he remained proud of the role: "Wherever I go, it's Frank they remember... when people nudge each other on the street and wave to me, I think it's kinda nice."
Burns was written out when he was replaced by Charles Winchester.
Charles Emerson Winchester III (David Ogden Stiers, Seasons 6-11) - A brilliant but arrogant surgeon from a wealthy Boston family. His snobbery and rivalry with Hawkeye provided both comedy and occasional growth. Replaced Frank Burns.
Lt. Colonel Henry Blake (McLean Stevenson, Seasons 1-3) - The lovable, bumbling commanding officer who loved fishing. His shocking death in "Abyssinia, Henry" (1975) was a groundbreaking TV moment.
Colonel Sherman T. Potter (Harry Morgan, Seasons 4-11) - The dignified career soldier who replaced Blake. A wise and fair leader who earned the respect of the entire camp.
Major Margaret "Hot Lips" Houlihan (Loretta Swit) - The strict head nurse whose character evolved from uptight military officer to a compassionate, beloved member of the 4077. She appeared in 239 episodes and won two Emmys.
Corporal/Sergeant Maxwell Q. Klinger (Jamie Farr) - Originally a combat medic who tried to get discharged by wearing women's clothes. He became the company clerk and one of the most beloved characters, appearing in 217 episodes.
Corporal Walter "Radar" O'Reilly (Gary Burghoff) - The company clerk who earned his nickname for his uncanny ability to anticipate needs before being asked. The only actor to appear in both the original 1970 film and the TV series. Left after Season 8.
Father John Patrick Francis Mulcahy (William Christopher) - The camp chaplain who provided moral support and occasional comic relief.
The chemistry between these characters made MAS*H a ratings juggernaut and critical darling, winning 14 Emmy Awards during its run. The show proved that television could tackle serious themes while maintaining humor, paving the way for future dramedies.