| # | Fact |
|---|
| 1 | Returned to the acting world with a voice role (Shelley Kelley) in the animated TV series Detention (1999). [1999] |
| 2 | Was one of many child actresses (including the late Dana Plato) to audition for the role of "Regan T. MacNeil" in The Exorcist (1973). Linda Blair, who got the role and made it famous, was born just 12 days before Pamelyn (within the same year). |
| 3 | On January 11, 2000, Pamelyn, a vigorous animal activist, faced up to six months in jail after being found guilty of carrying an elephant "bullhook" at an August 1999 protest of circus training methods. A bullhook is a wooden rod with a sharp hook that is jabbed into sensitive areas of the elephant to keep it fearful and manageable. She received 30 days. |
| 4 | Left the acting world in the 80s and became a registered nurse. She married a surgeon. They have no children. |
| 5 | An outspoken animal rights activist, in 1996 she quit her job as director of public relations for the Center for Animal Care and Control, a nonprofit organization under contract to the New York City Department of Health, claiming mismanagement by the agency. |
| Title | Year | Status | Character |
|---|
| Elf Sparkle Meets Christmas the Horse | 2009 | TV Movie | Christmas The Horse (voice) |
| Detention | 1999 | TV Series | Shelley Kelley |
| Heidi's Song | 1982 | | Klara (voice) |
| 240-Robert | 1979 | TV Series | Nikki |
| Project U.F.O. | 1978 | TV Series | Cindy Harper |
| Vega$ | 1978 | TV Series | Katie Howard |
| The Toolbox Murders | 1978 | | Laurie Ballard |
| CHiPs | 1978 | TV Series | Susie |
| Space Academy | 1977 | TV Series | Laura |
| Baretta | 1977 | TV Series | Judy |
| The Streets of San Francisco | 1976 | TV Series | Chris Cavanaugh |
| Miles to Go Before I Sleep | 1975 | TV Movie | Lisa |
| Apple's Way | 1974 | TV Series | Sally |
| Shazam! | 1974 | TV Series | Lynn Colby |
| These Are the Days | 1974 | TV Series | Kathy Day (voice) |
| A Tree Grows in Brooklyn | 1974 | TV Movie | Francie Nolan |
| Sigmund and the Sea Monsters | 1973 | TV Series | Peggy |
| Marcus Welby, M.D. | 1971-1973 | TV Series | Amy / Felicia |
| Lassie | 1972-1973 | TV Series | Lucy Baker |
| The Paul Lynde Show | 1972-1973 | TV Series | Sally Simms |
| Charlotte's Web | 1973 | | Fern Arable (voice, as Pam Ferdin) |
| Lassie: Joyous Sound | 1972 | TV Movie | Lucy Baker |
| The ABC Saturday Superstar Movie | 1972 | TV Series | Louisa / Lilibit |
| Sealab 2020 | 1972 | TV Series | Sally Murphy (voice) |
| The Roman Holidays | 1972 | TV Series | Precocia (voice) |
| The Delphi Bureau | 1972 | TV Series | Alice, the Boarder |
| Love, American Style | 1972 | TV Series segment "Love and the Instant Father" - Love and the Alibi/Love and the Instant Father/Love and the Lovely Evening/Love and Lover's Lane/Love and the Split-Up 1972 ... segment "Love and the Instant Father" | |
| The Odd Couple | 1971-1972 | TV Series | Edna Unger / Cindy |
| Young Dr. Kildare | 1972 | TV Series | Julie Loomis |
| Happy Birthday, Wanda June | 1971 | | Wanda June |
| Night Gallery | 1971 | TV Series | Frances Anne Emsden (segment "Brenda") |
| The Forgotten Man | 1971 | TV Movie | Sharon Hardy |
| Curiosity Shop | 1971 | TV Series | Pam |
| What's the Matter with Helen? | 1971 | | Kiddie M.C. |
| The Mephisto Waltz | 1971 | | Abby Clarkson |
| Play It Again, Charlie Brown | 1971 | TV Movie | Lucy van Pelt (voice) |
| The Cat in the Hat | 1971 | TV Short | Sally (voice) |
| The Psychiatrist | 1971 | TV Series | |
| Family Affair | 1966-1971 | TV Series | Shirley Dixon / Jennifer / Wendy / ... |
| The Beguiled | 1971 | | Amy |
| The Brady Bunch | 1971 | TV Series | Lucy Winters |
| The Christine Jorgensen Story | 1970 | | Dolly as a Child |
| Mannix | 1970 | TV Series | Dana |
| Walt Disney's Wonderful World of Color | 1970 | TV Series | Susie |
| Smoke | 1970 | TV Movie | Susie |
| Daughter of the Mind | 1969 | TV Movie | Mary Constable |
| A Boy Named Charlie Brown | 1969 | | Lucy Van Pelt (voice) |
| It Was a Short Summer, Charlie Brown | 1969 | TV Movie | Lucy van Pelt (voice) |
| The High Chaparral | 1969 | TV Series | Charity / Jennie Simmons |
| The Flying Nun | 1968-1969 | TV Series | Violetta / Linda Shapiro |
| Blondie | 1968-1969 | TV Series | Cookie Bumstead |
| Gunsmoke | 1968 | TV Series | Annie Jarvis |
| Star Trek | 1968 | TV Series | Mary |
| Mad Mad Scientist | 1968 | TV Movie | Sally Springer |
| Green Acres | 1968 | TV Series | Molly |
| The One and Only, Genuine, Original Family Band | 1968 | | Laura Bower |
| The Second Hundred Years | 1967 | TV Series | Nancy |
| Custer | 1967 | TV Series | Irene Maloney |
| The Reluctant Astronaut | 1967 | | Mary - Little Girl (uncredited) |
| Valley of Mystery | 1967 | TV Movie | Penny (uncredited) |
| The Monkees | 1967 | TV Series | Girl |
| Bob Hope Presents the Chrysler Theatre | 1967 | TV Series | |
| Daniel Boone | 1966 | TV Series | Little Girl |
| My Three Sons | 1966 | TV Series | Roseann |
| And Baby Makes Three | 1966 | TV Movie | Linda Jayne |
| The Legend of Jesse James | 1966 | TV Series | Rosey Bryant |
| The John Forsythe Show | 1965-1966 | TV Series | Pamela |
| Branded | 1965 | TV Series | Abigail |
| Never Too Late | 1965 | | Little Girl in Elevator (uncredited) |
| The Andy Griffith Show | 1965 | TV Series | Corlis |
| Bewitched | 1965 | TV Series | Young Girl at Vending Cart |
| Brainstorm | 1965 | | Little Girl in Lobby (uncredited) |
| We Learn About the Telephone | 1965 | Short | Susie Matthews (as Pam Ferden) |
| What a Way to Go! | 1964 | | Geraldine Crawley - Age 4 (uncredited) |
| The Littlest Hobo | 1964 | TV Series | Cindy Clark |
| Breaking Point | 1964 | TV Series | Little Girl |
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$700,000
