The cause was complications stemming dementia, her family said.
Bloom appeared extensively in theatre and television, but she is most noted for her film work. One of her memorable roles came in John Landis' 1978 comedy "Animal House", in which she appeared as the drunken, debauched wife of the beleaguered Dean Wormer.
She also appeared in three films by Martin Scorsese - "Street Scenes 1970", "The Last Temptation of Christ", and "After Hours" - and two by Clint Eastwood -- "High Plains Drifter" and "Honkytonk Man".
Bloom was born in 1938. After graduating from Boston University, she moved to Denver and started a local theatre. Moving to New York in the mid-1960s, she starred as Charlotte Corday in the Broadway revival of "Marat/Sade" and, shortly after, on the recommendation of the writer-historian Studs Terkel, made her film debut in Haskell Wexler's "Medium Cool".
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