Publicist Steve Rohr told The Associated Press on Sunday that Carter died in Houston of complications of endometrial (en-doh-MEE'-tree-ul) cancer.
Carter died Saturday at age 70. Husband and fellow actor Hal Holbrook called a "terrible blow" for their family.
The Tennessee native, with her unmistakable Southern accent and style, was a Broadway veteran before she landed a series of high-profile television roles that made her a national star.
She found perhaps her perfect part in Julia Sugarbaker, the wiser and wittier half of a pair of sisters who ran an Atlanta interior decorating firm in "Designing Women." The CBS sitcom that had a seven-year run on the network and an endless life in reruns.