Born in Portland, Oregon, Hailey-Moss took a degree in drama at the University of Washington.^[1] 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.^[2]

Hailey-Moss was married to Sesame Street writer Jeff Moss from 1973 until 1985.

• Jenny (1970) - Kay
• Lovers and Other Strangers (1970) - Brenda
• Harvey (1972) - Myrtle Mae Simmons
• The Seduction of Joe Tynan (1979) - Sheila Lerner
• The Survivors (1983) - Jack's Wife
• Random House Beginner Book Video (1989-1991) Narration and Additional Voices

• Hailey-Moss, Marian; Wilk, Mark (2012). A Dog Named Randall. CreateSpace Independent Publishing. ISBN 978-1470175610.
• Hailey-Moss, Marian; End, Andrea (2012). A Palace for Peepers. Illustrated by Marc Chalvin. CreateSpace Independent Publishing. ISBN 978-1475087703.
• Hailey-Moss, Marian (2013). Dreams Need Feet to Walk On. CreateSpace Independent Publishing. ISBN 978-1479355976.
• Hailey-Moss, Marian (2013). A Flower in my Chest. CreateSpace Independent Publishing. ISBN 978-1479197552.
• Hailey-Moss, Marian (2013). Teatime with Sophie. Illustrated by Marc Chalvin. CreateSpace Independent Publishing. ISBN 978-1481953634.
• Hailey-Moss, Marian (2013). Milky Whey's Dream. CreateSpace Independent Publishing. ISBN 978-1492201564.
• Hailey-Moss, Marian (2014). The Chicken in Apartment 15L. Illustrated by Marc Chalvin. CreateSpace Independent Publishing. ISBN 978-1494298326.
• Hailey-Moss, Marian; Meredith, Lois (2014). An Elephant Called Butterfly. CreateSpace Independent Publishing. ASIN B00V1DEHWM.
• Hailey-Moss, Marian (2014). Mister Pepper's Secret. CreateSpace Independent Publishing. ISBN 978-1499690958.

• Official website
• Marian Hailey-Moss at the Internet Broadway Database  
• Marian Hailey-Moss at IMDb