Question: Who was the actress that overcame breast cancer and played a part in I Know Why the Caged Bird Sings?

Shaker, Why Don't You Sing?  is author and poet Maya Angelou's fourth volume of poetry, published by Random House in 1983.  It was published during one of the most productive periods in Angelou's career; she had written four autobiographies and published three other volumes of poetry up to that point.  Angelou considers herself a poet and a playwright, but is best known for her seven autobiographies, especially her first," I Know Why the Caged Bird Sings", although her poetry has also been successful.  She began, early in her writing career, alternating the publication of an autobiography and a volume of poetry.  Many of the poems in "Shaker "focus on survival despite threatened freedom, lost love, and defeated dreams.  Over half of them are love poems, and emphasize the inevitable loss of love.  "Caged Bird", which refers to Angelou's first autobiography, is contained in this volume. <SEP> Diahann Carroll ( ) (born Carol Diahann Johnson, July 17, 1935) is an American television and stage actress and singer known for her performances in some of the earliest major studio films to feature black casts, including "Carmen Jones" (1954) and "Porgy and Bess" (1959) as well as on Broadway. " Julia" (1968) was one of the first series on American television to star a black woman in a nonstereotypical role and was followed by her portrayal of Dominique Deveraux in the primetime soap opera "Dynasty" over three seasons.  A breast cancer survivor and activist, Carroll was scheduled to return to the Broadway stage in the 2014 revival of "A Raisin in the Sun" as Mama, but withdrew prior to opening citing the demands of the rehearsal and performance schedule.  She is the recipient of numerous stage and screen nominations and awards, including the Golden Globe Award for "Best Actress In A Television Series" in 1968. <SEP> Edna Campbell (born November 26, 1968) is the Founder and Program Director of Breathe and Stretch, a health restoration program for breast cancer survivors.Edna also authored "The Breast Cancer Recovery Manual".  This manual is a guide for breast cancer survivors to recover from breast cancer surgeries and treatments.  The Breast Cancer Recovery Manual is based on Edna's personal recovery from breast cancer and return to perform as a professional athlete in the WNBA.  Edna is a retired women's basketball player who played in the Women's National Basketball Association (WNBA).  The 5 ft 8 in guard played with the Sacramento Monarchs as well as three other teams, but is well known for continuing to play despite suffering breast cancer.  In 2004, she was designated a Women's History Month honoree by the National Women's History Project.  Campbell was born in Philadelphia, Pennsylvania. <SEP> I Know Why the Caged Bird Sings is an American television film based on the autobiography of the same name by Maya Angelou, first aired April 28, 1979 on CBS.  Angelou and Leonora Thuna wrote the screenplay, and the movie was directed by Fielder Cook.  Also appearing were Esther Rolle, Roger E. Mosley, Diahann Carroll, Ruby Dee, and Madge Sinclair.  Constance Good played the young Maya Angelou.  Filming took place in Vicksburg, Mississippi.