Carroll was 84.
She died early Friday after a fight against breast cancer, her journalist Jeffery Lane said.
Carroll was as well-known for her talent as for her beauty and elegance in her work on "Julia" and her subsequent performance as a wealthy and cultured Dominique Deveraux in the 1980s ABC primetime soap opera "Dynasty" , when "Julia" was premiered on NBC in 1968.
Her role as widowed nurse Julia Baker, who raised a charming little son, also revealed the image of a black woman as something other than a domestic worker.  While some labeled "Julia" groundbreaking for their non-stereotypical premise, others criticized the show for a simplified account of America's black experience in the late 1960s.
"I really did not think that this is a show that will work," she said to "Julia." "I thought it was something that would relieve one's conscience for a very short period of time, and I really thought, leave it somewhere else."
The series earned her an Emmy nomination and a Golden Globe Award.
Carroll already had an established career at the time.
Born in New York, Carol Diann Johnson attended the New York High School of Music and Art on a scholarship.
At the age of 16, she adopted the name Diahann Carroll and won an audition for the Arthur Godfrey Talent Scouts television program.
The opportunity resulted in radio performances, modeling and singing in nightclubs.
Carroll made her Broadway debut in 1954 in the musical "The House of Flowers", in which also Pearl Bailey and Juanita Hall participated. She appeared in her first movie, the now classic "Carmen Jones" starring Harry Belafonte and Dorothy Dandridge in the same year.
Carroll appeared in Las Vegas and released several albums early, including "Diahann Carroll Sings Harold Arlen" (1957), "Diahann Carroll and Andre Previn" (1960) and "The Fabulous Diahann Carroll" (1962).
On Broadway, however, Carroll became the first African American.
She became the first African American woman to win Tony's Best Actress when she won the coveted award for her portrayal of Barbara Woodruff in the 1962 musical "No Strings."
She received an Oscar nomination for the 1974 movie "Claudine" She starred alongside James Earl Jones.
Carroll reshuffled the television landscape in the 1980s, when she became the first major African-American figure on primetime soap in Dynasty.
Her character, the aforementioned Dominique Deveraux (whom she also played) In an interview on her first day on set in 1984, Carroll said she wanted to be "the first black man". * h on TV. "
" I have never played such an unlikely role, "she said," and I like that. I like that a lot because I think very often that they are almost required to be nice people, especially minorities. "
Carroll's personal life was no less glamorous.
She was married four times: from 1956 until 1963 she had a daughter, Suzanne, to take on producer Monte Kay, briefly to Las Vegas boutique owner Fred Glusman in 1973, and Jet Magazine Managing Editor Robert DeLeon from 1975 until his death two years later in a car accident; and to sing Vic Damone from 1987 to 1996.
In the 1990s, Carroll won a new legion of fans who played Whitney Gilbert's mother Marion in "A Different World," and in the new millennium, Carroll appeared on several television shows including "Gray's Anatomy" and "A Single Mother's Journal."
Her last role was Miss Edna in the 2016 movie "The Masked Saint."
Carroll is released by her daughter and her grandchildren August and Sydne y survived.