Betty McGuire

Betty McGuire died of natural causes on 8 October 2026 at the Motion Picture and Television Country House and Hospital in Woodland Hills, California, where she had lived since 2017. She was 100 years old.

Her death became public on 18 October 2026, when Keith Gerchak, an actor, co-founder of Double G Films and a close family friend, confirmed it to The Hollywood Reporter, which published an obituary by Mike Barnes. She left no survivors. No funeral or memorial plans had been announced at the time of the first reports.

Betty McGuire was born on 20 March 1926 in Bridgeport, Connecticut. Few details of her childhood and family have been made public. By the mid 1950s she was working in New York as a stage performer, and she would remain in the profession for about seventy years.

McGuire began on Broadway, where she performed and understudied in the original productions of the musicals Plain and Fancy (1955 to 1956), Happy Hunting (1956 to 1957), which starred Ethel Merman, and Oh, Captain! (1958). Her colleagues on those shows included Merman, Barbara Cook, Bea Arthur and Tony Randall.

She built a long career in musical theatre beyond Broadway. She headlined as Mame at Caesars Palace in Las Vegas and in other productions around the world, and starred in regional, national and Australian touring productions of Gypsy, Oliver!, How to Succeed in Business Without Really Trying and The Ziegfeld Follies of 1956. Over the years she shared the stage with Tallulah Bankhead, Celeste Holm, Susan Hayward, Constance Bennett, Jane Russell and Ron Moody.

In film she played Sister Mary Quacker in Cheech and Chong's Up in Smoke (1978) and a nurse in Coma (1978), Michael Crichton's medical thriller starring Genevieve Bujold, and appeared in The Incredible Shrinking Woman (1981) and Wishmaster (1997).

On television she worked steadily as a guest performer, with credits on The Doris Day Show, Cannon, Columbo, Barnaby Jones, Baretta, Charlie's Angels, Lou Grant, Hill Street Blues, Moonlighting, St. Elsewhere, Falcon Crest, Star Trek: Deep Space Nine, Murphy Brown, ER and 7th Heaven. Her best known role was Kate Malone, mother of Maggie Seaver (Joanna Kerns) and grandmother of the Seaver children, on ABC's Growing Pains. She played the part in 12 episodes from 1986 to 1991, appearing in all but one of the sitcom's seven seasons, with Gordon Jump as her on screen husband, Ed Malone.

For many years McGuire volunteered as a receptionist and advocate for the Coalition for Economic Survival, a legal clinic in Los Angeles that helps low income tenants fighting eviction.

In 2017 she moved to the Motion Picture and Television Country House and Hospital in Woodland Hills, California, the retirement community for people from the entertainment industry. There she hosted and produced a talk show, GabFest, for the on campus station Channel 22. Instead of interviewing celebrity residents, she featured the dreams and life stories of the people who worked there. She appeared in a 2019 NBC Nightly News report about the home, saying that having the chance to do new and different things at 92 was the best thing she could imagine. Reports of her death said she had no surviving family.

McGuire's career linked the original Broadway casts of the 1950s with several decades of American network television. She was part of the generation of dependable character actors who appeared across the era's police dramas, medical shows and sitcoms, and for viewers of Growing Pains she was the warm, recurring grandmother of the Seaver family. In her nineties she found a new role as the host of GabFest, using her own show to celebrate the staff who cared for retired members of her industry.