Filmography
| Year | Film | Role | Notes |
|---|---|---|---|
| 1958 | Country Music Holiday | Sis Brand | |
| 1958 | Goddess, TheThe Goddess | Emily Ann Faulkner, age 8 | |
| 1959 | 4D Man | Marjorie Sutherland | |
| 1959 | Happy Anniversary | Debbie Walters | |
| 1962 | Miracle Worker, TheThe Miracle Worker | Helen Keller | Academy Award for Best Supporting Actress Nominated–Golden Globe |
| 1965 | Billie | Billie Carol | |
| 1966 | Daydreamer, TheThe Daydreamer | Thumbelina | Voice |
| 1967 | Think Twentieth | Herself | Short subject |
| 1967 | Valley of the Dolls | Neely O'Hara | |
| 1969 | Me, Natalie | Natalie Miller | Golden Globe for Best Actress – Motion Picture Musical or Comedy |
| 1972 | You'll Like My Mother | Francesca Kinsolving | |
| 1978 | Swarm, TheThe Swarm | Rita | |
| 1982 | By Design | Helen | Nominated–Genie Award for Best Performance by a Foreign Actress |
| 1986 | Willy/Milly | Doris Niceman | Alternative titles: I Was a Teenage Boy Something Special |
| 1992 | Prelude to a Kiss | Mrs. Boyle | |
| 1999 | Kimberly | Dr. Feinstenberger | Alternative title: Daddy Who? |
| 2005 | Bigger Than the Sky | Mrs. Keene/Earlene | |
| 2006 | Falling In Love With The Girl Next Door | ||
| 2008 | Four Children of Tander Welch, TheThe Four Children of Tander Welch | Susan Metler |
| Year | Title | Role | Notes |
|---|---|---|---|
| 1963– 1966 |
Patty Duke Show, TheThe Patty Duke Show | Patty Lane/Cathy Lane | 104 episodes Nominated–Emmy Award; Nominated–Golden Globe |
| 1967 | Virginian, TheThe Virginian | Sue Ann MacRae | "Sue Ann" Season 5, Episode 16 |
| 1970 | My Sweet Charlie | Marlene Chambers | TV movie Limited theatrical release after television premiere Primetime Emmy Award for Outstanding Lead Actress – Miniseries or a Movie |
| 1971 | If Tomorrow Comes | Eileen Phillips | TV movie |
| 1971 | She Waits | Laura Wilson | TV movie |
| 1972 | Deadly Harvest | Jenny | TV movie |
| 1973 | Hawaii Five-O | Toni | Season 5, Episode 15 "Thanks for the Honeymoon" |
| 1974 | Nightmare | Jan | TV movie |
| 1975 | Police Woman | LaRue Collins | Guest-starred with then husband John Astin in Season 1 / Episode 18 "Nothing Left to Lose" |
| 1976 | Captains and the Kings | Bernadette Hennessey Armagh | Miniseries Primetime Emmy Award for Outstanding Lead Actress – Miniseries or a Movie |
| 1978 | Family Upside Down, AA Family Upside Down | Wendy | TV movie Nominated–Primetime Emmy Award Nomination for Outstanding Performance by a Supporting Actress in a Drama or Comedy Special |
| 1978 | Having Babies III | Leslee Wexler | Primetime series, 3rd installment Nominated–Primetime Emmy Award Nomination for Outstanding Lead Actress for a Single Appearance in a Drama or Comedy Series |
| 1979 | Before and After | Carole Matthews | TV movie |
| 1979 | Miracle Worker, TheThe Miracle Worker | Annie Sullivan | TV movie Primetime Emmy Award for Outstanding Lead Actress – Miniseries or a Movie |
| 1980 | The Babysitter | Liz Benedict | TV movie |
| 1980 | Women's Room, TheThe Women's Room | Lily | TV movie Nominated–Primetime Emmy Award for Outstanding Supporting Actress in a Limited Series or a Special |
| 1981 | Girl on the Edge of Town, TheThe Girl on the Edge of Town | Martha | TV movie Nominated–Primetime Emmy for Outstanding Individual Achievement – Children's Programming |
| 1981 | Violation of Sarah McDavid, TheThe Violation of Sarah McDavid | Sarah McDavid | TV movie |
| 1981 | Please Don't Hit Me, Mom | Barbara Reynolds | TV movie (appearing with her son, Sean Astin) |
| 1982 | It Takes Two | Molly Quinn | TV series |
| 1983 | September Gun | Sister Dolcina | TV movie |
| 1984 | Insight | Unnamed | Series episode: The Hit Man Nominated–Daytime Emmy for Outstanding Individual Achievement in Religious Programming – Performers |
| 1984 | George Washington | Martha Washington | Miniseries Nominated–Primetime Emmy Award for Outstanding Supporting Actress in a Limited Series or a Special |
| 1985 | Hail to the Chief | President Julia Mansfield | TV series |
| 1986 | Time for Triumph, AA Time for Triumph | Concetta Hassan | TV docudrama |
| 1987 | Fight for Life | Shirley Abrams | TV docudrama |
| 1987 | Karen's Song | Karen Matthews | TV series |
| 1988 | Fatal Judgement | Anne Capute | TV movie |
| 1990 | Always Remember I Love You | Ruth Monroe | TV movie |
| 1990 | Call Me Anna | Herself | TV docudrama |
| 1991 | Killer Among Friends, AA Killer Among Friends | Jean Monroe | TV movie |
| 1991 | Absolute Strangers | Judge Ray | TV docudrama |
| 1992 | Last Wish | Betty Rollin | TV docudrama |
| 1993 | Matter of Justice, AA Matter of Justice | Mary Brown | TV docudrama |
| 1994 | Cries from the Heart | Terry Wilson | TV movie |
| 1995 | When the Vows Break | Barbara Parker | TV docudrama Also titled: Courting Justice |
| 1995 | Amazing Grace | Hannah Miller | 5 episodes |
| 1996 | Harvest of Fire | Annie Beiler | TV movie |
| 1996 | Race Against Time: The Search for Sarah | Natalie | TV movie |
| 1997 | Christmas Memory, AA Christmas Memory | Sook Faulk | TV movie |
| 1997 | Frasier | Caller | 1 episode |
| 1998 | Patty Duke Show: Still Rockin' in Brooklyn Heights, TheThe Patty Duke Show: Still Rockin' in Brooklyn Heights | Patty Lane/Cathy Lane MacAllister | TV movie |
| 1998 | Disappearing Act, TheThe Disappearing Act | Faye Dolan | TV movie |
| 1998– 2003 |
Touched by an Angel | Jean | 3 episodes Nominated– Primetime Emmy Award for Outstanding Guest Actress in a Drama Series (1999) |
| 1999 | Season for Miracles, AA Season for Miracles | Angel | TV movie |
| 2000 | Miracle on the Mountain: The Kincaid Family Story | Anne Kincaid | TV docudrama |
| 2002 | Little John | Sylvia | TV movie |
| 2004 | Murder without Conviction | Mother Joseph | TV movie |
| 2004 | Judging Amy | Valerie Bing | 1 episode |
| 2006 | Falling in Love with the Girl Next Door | Bridget Connelly | TV movie |
| 2009 | Love Finds a Home | Mary Watson | TV movie |
| 2010 | Unanswered Prayers | Irene | TV movie |
| 2012 | Hawaii 5-0 | Sylvia Spencer | 1 episode |
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