Marian Hailey-Moss (born February 1, 1941) is an American actress, author, and humanitarian.
Hailey-Moss was born on February 1, 1941, in Portland, Oregon. She has a BA degree in drama from the University of Washington. She began her acting career in the early 1960s with performances in Shakespearean festivals. She moved to New York City a few years later where she was cast in a series of Broadway plays, avant-garde productions, and motion pictures. She played the critically acclaimed role of Brenda in the 1970 film Lovers and Other Strangers.
Broadway plays in which Hailey-Moss performed included Mating Dance (1965), The Best Laid Plans (1966), Keep It in the Family (1967), Harvey (1970), Company (1970), The Castro Complex (1970), and The Women (1973).
Hailey-Moss married author John Thackray in March 1965.