With appearances on television shows such as NBC's Law & Order and Fame, she is known by longtime soap fans as Wanda Wolek #1 on the ABC soap opera, One Life to Live, a role she played from 1972 through 1976, and from 1980 through 1994. She, earlier in her career had played Edie Hoffman on the ABC soap opera All My Children.
She has appeared in the movies The People Next Door (1970), The Honey Moon Killers (1970), Rhinoceros (1974), Looking Up (1977), The Black Marble (1980), and Trees Lounge (1996).
She has appeared off-Broadway and on Broadway and has directed for the theater, too. She received an Obie Award and a Drama Desk Award for her performance in Kaddish, directed by Robert Kalfin at the Chelsea Theater Center.
She is married to film, stage, and television actor Lee Wallace.
In 2004, Internet rumors swirled that Marilyn had died in a car crash. Soap Opera Digest contacted her and conducted an interview, putting the rumors to rest.
