The Tootsie star passed away in New York City on Tuesday (04Oct11), just four months after the death of her theatre producer husband Philip Rose. She is believed to have died of natural causes.
Belack began her career with a number of TV roles in the 1950s, and in 1955 she performed on the Poetry of the Negro with Sidney Poitier - a record produced by her husband, Rose.
She went on to appear in movies such as Tootsie, Fast Forward and Batteries Not Included, before returning to TV with guest roles in Picket Fences, Chicago Hope, Sisters and Ellen.
Belack made regular appearances as Judge Margaret Barry in cop shows Law & Order and Law & Order: SVU and her last TV role came in a 2003 episode of Sex and the City.
A public memorial for Belack and Rose will be held on 17 October (11) at New York's Ambassador Theater.