Mary Elizabeth McDonough

• Name — Mary Elizabeth McDonough • Born — 4 May 1961 • Birthplace — Los Angeles, California • Occupation — Actress, writer • Years Active — 1963–present Mary Elizabeth McDonough (born May 4, 1961), sometimes credited as Mary Beth McDonough, is an American actress and writer, best known for her role as Erin Walton on The Waltons from 1972 to 1981, and several subsequent made-for-television reunion films in later decades.

McDonough was born on May 4, 1961 in the Van Nuys section of Los Angeles, California, the third of four children to Lawrence and Elizabeth (née Murray) McDonough. Her father was an Irish American ex-United States Navy from Nebraska, while her mother was from La Junta, Colorado. McDonough was raised in the Roman Catholic Church, in what she described as a working-class family. She and her siblings were raised in the Northridge section of Los Angeles, and attended the Our Lady of Lourdes School in Northridge. McDonough was an active theater student, and became interested in acting in elementary school.

• Illustration — McDonough on set of The Waltons, 1973 McDonough began her career as a child actor, portraying Erin Walton in the series The Waltons beginning in September 1972, a role which she would portray until the series' finale nine years later in 1981. She appeared in the PBS children's television program Zoom as a ZOOMguest; the segment showed her filming the Season 1 episode "The Yearling" while she narrated. She made her feature film debut with a minor part in the action film Lovely But Deadly (1981) before co-starring with Melissa Sue Anderson in the television horror film Midnight Offerings (1981). McDonough was subsequently cast in a lead role in the slasher horror film Mortuary (1983), opposite Lynda Day George and Bill Paxton. She reprised her role of Erin Walton in several of The Waltons subsequent television reunion films A Wedding on Walton's Mountain, Mother's Day on Walton's Mountain, and A Day for Thanks on Walton's Mountain (all released and televised in 1982). In 1987, she had a lead role in the dark comedy Funland, about an unhinged amusement park operator. In the 1990s, McDonough appeared again as Erin Walton in a further three Waltons reunion made-for-TV films: A Walton Thanksgiving Reunion (1993), A Walton Wedding (1995), and A Walton Easter (1997). In the 2000s, she returned to other television acting roles, guest-starring on Boston Legal (2004–2008 on ABC) and The New Adventures of Old Christine (2006–2010 on CBS). McDonough has been a radio guest on international and syndicated shows such as Get Focused Radio with Kate Hennessy. She can be seen on the internet in the show McDougall M.D. as part of the broadcasts on the TBN network. In 2018, McDonough's book Christmas on Honeysuckle Lane was adapted into the Hallmark Channel film of the same name starring Alicia Witt and Colin Ferguson. McDonough also appeared in the film in a minor supporting role.

McDonough has lupus erythematosus, which, she claimed on her In the Know plastic surgery awareness website, stemmed from leaking silicone from her breast implants.

• Year — Title — Role — Notes • 1963 — General Hospital — Heidi Hopkins — TV series • 1971 — The — Erin Walton — TV pilot for The Waltons • 1972–1981 — The — Main role (213 episodes) • 1979 — Beat — Herself (contestant) — Game show (5 episodes) • 1980 — The — Erin Walton — TV film • 1981 — Midnight Offerings — Robin Prentiss — Television film • 1982 — A Wedding on Walton's Mountain — Erin Walton • Mother's Day on Walton's Mountain • A Day for Thanks on Walton's Mountain • The — Laura Barber — 1 episode • 1983 — Abby Foster — Episode: "Abby's Maiden Voyage" • 1989 — Hunter — Vera Donovan — Episode: "A Girl Named Hunter" • 1993 — Bodies of Evidence — Sarah Gentry — Episode: "The Formula" • A Walton Thanksgiving — Erin Walton — TV film • 1995 — A Walton Wedding • The — Betsy Phillips — Episode: "Suspect" • 1996 — Promised Land — Claire's Mother — Episode: "Christmas" • 1997 — A Walton Easter — Erin Walton — TV film • ER — Jean Twomey — Episode: "Random Acts" • 1998 — Diagnosis: Murder — Colleen Akins — Episode: "Baby Boom" • The — Mrs. Falk — Episode: "Crash" • 1999 — Ally McBeal — Attorney Gloria Stepp — Episode: "Only the Lonely" • Walker, Texas Ranger — Jill Allen — Episode: "Safe House" • 2001 — The — Mrs. Berwin — Episode: "Secrets and Lies" • 2002 — The — Beth — Episode: "Game On" • Will & Grace — Mom — Episodes: "Humongous Growth", "All About Christmas Eve" • 2006 — Boston Legal — Janice Warner — Episode: "Smile" • Where There's a Will — Dr. Burton — TV film • 2006–2009 — The — Mrs. Wilhoite — Recurring role (8 episodes) • 2007 — Christmas at Cadillac Jack's — Madge — TV film • 2012 — Lake Effects — Elizabeth • 2018 — Christmas on Honeysuckle Lane — Caroline Reynolds — Hallmark television film • 2023 — A Biltmore Christmas — The Director • 2024 — Holiday Touchdown: A Chiefs Love Story — Carole

• Year — Title — Notes • 1998 — Creampuff — Associate producer • 2000 — For the Love of May — Director and writer

• Year — Title — Role — Notes • 1981 — Lovely But Deadly — Denise • 1982 — Mortuary — Christie Parson • 1984 — Snowballing — Karen Reed • 1985 — Impure Thoughts — Sister Juliet • Waiting to Act — Linda • 1987 — Funland — Kristin Cumming • 1989 — The — Wife / Mother of newborn — Short film • 1991 — Mom — Alice • 1994 — Heaven Sent — Kathy Chandler • 1997 — One of Those Nights — Andrea Harris • 2014 — The — Jessica's Mom • Monster Hunters USA And Day Care Center — Mom Daily — Short film • 2018 — Amateur — Math Teacher • 2025 — Sod & Stubble — Mary Bartsch