List of Famous people who died at 89

Carl Kaysen was an American academic, policy advisor and international security specialist at the Massachusetts Institute of Technology (MIT) and co-chair of the Committee on International Security Studies at the American Academy of Arts and Sciences. He is the father of Girl, Interrupted author Susanna Kaysen. He was married for 50 years to Annette Neutra until her death in 1990. In 1994, he married Ruth Butler.

Carlos Chagas Filho was a Brazilian physician, biologist and scientist active in the field of neuroscience. He was internationally renowned for his investigations on the neural mechanisms underlying the phenomenon of electrogenesis by the electroplaques of electric fishes. He was also an important scientific leader, being one of the founders of the Biophysics Institute of the Federal University of Rio de Janeiro and was also a president for 16 years of the Vatican's Pontifical Academy of Sciences, and president of the Brazilian Academy of Sciences (1965–1967).

Hermione Ferdinanda Gingold was an English actress known for her sharp-tongued, eccentric character.

Francisco Escudero García de Goizueta was a Basque composer.

Daniel Kastler was a French theoretical physicist, working on the foundations of quantum field theory and on non-commutative geometry.

Dayle Lymoine Robertson was an American actor best known for his starring roles on television. He played the roving investigator Jim Hardie in the television series Tales of Wells Fargo and Ben Calhoun, the owner of an incomplete railroad line in Iron Horse. He often was presented as a deceptively thoughtful but modest Western hero. From 1968 to 1970, Robertson was the fourth and final host of the anthology series Death Valley Days.

Lieutenant-Colonel Richard Geoffrey Gordon Byron, 12th Baron Byron DSO was a British nobleman, peer, politician, and army officer. He was a descendant of a cousin of Romantic poet and writer, George Gordon Byron, 6th Baron Byron.