10/19/2026
Betty McGuire, best remembered as Grandma Kate Malone on Growing Pains, has passed away at age 100. ❤️
Her death was announced today. She died October 8, 2026, of natural causes in Woodland Hills, California, according to her close friend Keith Gerchak.
Before becoming a familiar face on television, Betty appeared in the original Broadway productions of Plain and Fancy (1955), Happy Hunting (1956) with Ethel Merman, and Oh, Captain! (1958) with Tony Randall. She also starred as Mame at Caesars Palace in Las Vegas and toured in musicals including Gypsy and Oliver!
In the 1980s, a new generation came to know her as Grandma Kate Malone on Growing Pains. Appearing from 1986 through 1991, Betty played the mother of Joanna Kerns’ character, Maggie Seaver, and grandmother to Mike, Carol, Ben, and Chrissy. Gordon Jump played her husband, Ed. For those of us who grew up gathering around the television for our favorite family sitcoms, she was a familiar face from those evenings spent watching the Seavers together.
Her career also included appearances on Columbo, Charlie’s Angels, Little House on the Prairie, Moonlighting, and many other familiar shows. Movie audiences may recognize her as Sister Mary Quacker in Cheech & Chong’s Up in Smoke or as a nurse in Coma.
Our thoughts and prayers are with her friends and everyone who loved her.
Thank you for the memories, Betty. Rest in peace. ❤️🙏