Jennifer Harmon, who appeared 21 times on Broadway over a span of nearly 50 years and portrayed the villainous Cathy Craig Lord on the ABC soap opera One Life to Live , has died. She was 82. Harmon lived in New York and died Saturday, her family announced . Harmon was the fifth actress to portray Cathy on Agnes Nixon’s One Life to Live , following Catherine Burns, Amy Levitt, Jane Alice Brandon and Dorrie Kavanaugh. She worked on the show from 1976 through 1978, when she received a Daytime Emmy nomination. (Robin Strasser had been offered the part but turned it down to play Dorian Lord.) Harmon had made her Broadway debut in 1965 in a revival of Moss Hart and George S. Kaufman’s You Can’t Take It With You and before the decade was done had returned to the Great White Way in revivals of Chekhov’s The Cherry Orchard and Ibsen’s The Wild Duck and six other plays.…