Clarice Blackburn (February 26, 1921 – August 5, 1995) was an American actress best-known for playing three characters on the cult series Dark Shadows.

She appeared in an Equity Library Theater production of The Great Big Doorstep in 1950 before she understudied Eva Gabor in The Happy Time on Broadway.

During the 1965–66 season, Clarice won an Obie Award for Distinguished Performance as Sara Calendar in Good Day / The Exhaustion of Our Son's Love.

[citation needed] When her appearances on the show began to lessen, she gladly accepted the opportunity to create the role of Mary Lou Northcote on the CBS soap opera The Secret Storm during the first half of 1970.

In addition to the soaps, Blackburn guest starred in an episode of The Eternal Light entitled "A Field of Buttercups" in 1969 and on a Saturday morning children's special, Toby, in 1970.

In addition to acting on soap operas, Blackburn was a writer for Love of Life[citation needed] and was part of the writing staff of All My Children that won two Emmy Awards.