Susan Harrison was born on August 26, 1938, in Leesburg, Florida, and went on to become a renowned American actress.
Harrison is most notable for her appearances in the 1957 film noir classic Sweet Smell of Success, where she played the role of the sister with whom Burt Lancaster had an unhealthy affection, as well as in the iconic Twilight Zone episode "Five Characters in Search of an Exit".
Prior to her professional debut, Harrison was a graduate of the High School of Performing Arts in New York City, where she had the opportunity to play significant roles in Member of the Wedding by Carson McCullers and Pygmalion by George Bernard Shaw.
Harrison attended Boston University, where she studied under Peter Kass, who directed her in the role of Abigail in Arthur Miller's The Crucible. Her professional debut was in the live television drama Can You Coffeepot on Skates?, presented in 1956.
Throughout her career, Harrison appeared in various television shows, including Matinee Theatre, Alfred Hitchcock Presents, and Bonanza, as well as in the film Key Witness with Jeffrey Hunter and Dennis Hopper.