George Howard Brett (born May 15, 1953) is an American former professional baseball third baseman, designated hitter, and first baseman who played 21 seasons in Major League Baseball for the Kansas City Royals.

Brett Lorenzo Favre (born October 10, 1969) is an American former professional football quarterback who played in the National Football League for 20 seasons, primarily with the Green Bay Packers.

John Brett (8 December 1831 – 7 January 1902) was a British artist associated with the Pre-Raphaelite movement, mainly notable for his highly detailed landscapes.

(born December 1, 1949) an American illustrator and writer of children's picture books.

Peter Jeremy William Huggins (3 November 1933 – 12 September 1995), known professionally as Jeremy Brett, was an English actor.

Theodore (December 16, 1911 – January 22, 1993) an American photographer.

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(born Audrey Dawn Johnston; July 11, 1924 – September 15, 2007) a Canadian-American game-show personality, actress, and singer.

(born 23 October 1961) an Australian composer, violist and conductor.

Brett Michael Kavanaugh (born February 12, 1965) is an American lawyer and jurist serving as an associate justice of the Supreme Court of the United States.

(born 17 July 1980) a British actor, comedian, writer, producer, and podcaster.

(born October 6, 1976) an American actor and comedian.

(born March 28, 1969) an American film director and producer.

(born 25 October 1988) a Scotland international rugby league footballer who plays as a forward.

Brett Lewis Anderson (born 29 September 1967) is an English singer best known as the lead singer and primary lyricist of the band Suede.