John Dennis: English critic, playwright, poet.

American actor, filmmaker, and photographer.

Dennis Keith Rodman (born May 13, 1961) is an American former professional basketball player.

Innovative British television dramatist, playwright.

John (born January 2, 1942) an American former politician, teacher, and wrestling coach who represented from 1987 to 2007 and served as the 51st Speaker of the United States House of Representatives from 1999 to 2007.

Dennis J. Banks (April 12, 1937 – October 29, 2017) was a Native American activist, teacher, and author.

Inventor of holography, physicist, Nobel.

Dennis Michael Miller (born November 3, 1953) is an American political commentator, stand-up comedian, talk show host, writer, actor and former sportscaster.

Pioneer of C programming language.

(September 6, 1938 – January 21, 2011) an American conceptual artist, performance artist, earth artist, sculptor and photographer.

Francis Xavier Waldron (August 10, 1905 – January 31, 1961), best known by the pseudonym Eugene Dennis and Tim Ryan, was an American communist politician and union organizer, best remembered as the long-time leader of the Communist Party USA and as named party in Dennis v. United States, a famous McCarthy Era Supreme Court case.

Former U.S. Representative, presidential candidate.