Diana Hyland (Wikipedia)

Diana Hyland made her acting debut in 1955 at age 19 in an episode of Robert Montgomery Presents. Over the next decade she appeared often in guest and supporting roles in various television series, including Naked City, The Eleventh Hour, The Fugitive, The Invaders and The Twilight Zone as well as cast in the feature film The Chase (1966) with Marlon Brando, Jane Fonda, and Robert Redford.

In 1959, she originated the role of Heavenly Finley in Tennessee Williams‘ Sweet Bird of Youth on Broadway, appearing with Geraldine Page and Paul Newman. In 1966, she co-starred in the movie Smoky in which she played Julie Richards, owner of the Rockin’ R Ranch, who falls in love with Clint Barkeley (Fess Parker), owner of Smokey, a black stallion turned cutting horse. The same year she appeared in an episode of the TV series The Man from U.N.C.L.E. titled “The Candidate’s Wife Affair”. From 1958 to 1963, Hyland was a regular on the NBC soap opera Young Doctor Malone, playing Gig Houseman, wife of the younger Dr. Malone. 

Hyland’s debut in a feature film was in One Man’s Way (1963). She had a continuing role as Susan Winter in the prime-time soap opera Peyton Place from 1968 to 1969. She appeared in the 1976 television movie The Boy in the Plastic Bubble, for which she won a posthumous Emmy Award. The following year, she co-starred with Dick Van Patten in the series Eight Is Enough, but appeared in only four episodes before her death, and her character, Joan Bradford died as well.