List of Famous people who died at 66

Leslie Bradley was an English actor. He died in Desert Hot Springs, California.

James Leo Herlihy was an American novelist, playwright and actor.

Eugenio Scarpellini was an Italian-born Bolivian Roman Catholic bishop.

Kathleen B. Burke was an American movie actress of the 1930s and former model.

Noach Dear was an American attorney, politician, and jurist who served as a New York Supreme Court judge. Dear was elected in 2008 as a civil court judge, in 2010 as an Acting Supreme Court Justice, and in 2015 for a 15-year term as a Permanent Justice on the New York Supreme Court. Prior to his appointment, he served as a member of the New York City Council from 1983 to 2001. He died during the COVID-19 pandemic due to complications of COVID-19.

Robert Adams was an English sculptor and designer. Whilst not widely known outside of artistic circles, he was nonetheless regarded as one of the foremost sculptors of his generation. In a critical review of a retrospective mounted by the Gimpel Fils gallery in London in 1993, Brian Glasser of Time Out magazine described Adams as "the neglected genius of post-war British sculpture", a sentiment echoed by Tim Hilton in the Sunday Independent, who ranked Adams' work above that of his contemporaries, Ken Armitage, Reg Butler, Lynn Chadwick and Bernard Meadows.

Marcello Marchesi was an Italian author, screenwriter and film director. He wrote 64 films between 1939 and 1977. He also directed six films between 1951 and 1952. He was born in Milan and died in San Giovanni di Sinis, Cabras, Italy.