List of Famous people who are 77

Richard O'Sullivan is an English comedy actor, who is known for his role as Robin Tripp in the 1970s sitcoms Man About the House (1973–1976) and Robin's Nest (1977–1981) and as the title character in the period family adventure series Dick Turpin (1979–1982). O'Sullivan also starred in Doctor at Large, Doctor in Charge, Trouble in Mind, Alcock and Gander and Me and My Girl.

Richard Lee "Dick" Schmalensee is the John C. Head III Dean, Emeritus and the Howard W. Johnson Professor of Management, Emeritus at the MIT Sloan School of Management. He is also Professor of Economics, Emeritus, at the Department of Economics at MIT.

Roy F. Schwitters is a professor of physics at the University of Texas at Austin. He was formerly a professor of physics at Harvard and Stanford. His undergraduate and doctoral degrees are both from MIT.

Richard Brendan Higgins KC*HS, USAF (ret) is an Irish-born American bishop of the Roman Catholic Church. Higgins served as an auxiliary bishop of the Archdiocese for the Military Services, USA from 2004 to 2020.