- Born
- Died
- Birth nameMariclare Catherine Costello
- Height5′ 4″ (1.63 m)
- Mariclare Costello was born on February 3, 1936 in Peoria, Illinois, USA. She was an actress, known for Ordinary People (1980), The Adventures of Buckaroo Banzai Across the 8th Dimension (1984) and Let's Scare Jessica to Death (1971). She was married to Allan Arbus. She died on April 17, 2026 in Brooklyn, New York City, New York, USA.
- SpouseAllan Arbus(July 24, 1977 - April 19, 2013) (his death, 1 child)
- ChildrenArin ArbusAmy Arbus
- Daughter, Arin Arbus, is a stage director.
- Theater professor at Loyola Marymount University.
- Best remembered as the seductive vampire Emily in the creepy cult film chiller Let's Scare Jessica to Death (1971).
- Stepmother of Amy Arbus and Doon Arbus.
- Received her master's degree in theater and education from Catholic University, where she studied improv with the great Viola Spolin. She performed for President Kennedy as Nerissa in "The Merchant of Venice.".
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