List of Famous people who are 78

Stephen King Baggot, A.S.C. is an American cinematographer. Baggot is a member of the American Society of Cinematographers. He is the grandson of actor/director of the early 20th century, King Baggot.

Genival Cassiano dos Santos, best known only as Cassiano, was a Brazilian singer, songwriter and guitarist.

Sir Richard Peto is an English statistician and epidemiologist who is Professor of Medical Statistics and Epidemiology at the University of Oxford, England.

Lou Castel is an Italian-Colombian-Swedish character actor who became known through his work in Italian films, most notably for his starring role in Damiano Damiani's A Bullet for the General (1967).

Richard Marc Losick is an American molecular biologist. He is the Maria Moors Cabot Professor of Biology at Harvard University, a Howard Hughes Medical Institute Investigator, He is especially noted for his investigations of endospore formation in Gram positive organisms such as Bacillus subtilis.