British-born Mark Burnett produced and directed a number of highly popular shows in the United States, including Survivor and The Apprentice.
1960-
Mark David Chapman is a U.S. convicted murderer and former security guard, best known for shooting and killing Beatles member John Lennon.
1955-
Famous in the NBA for his zealous management of the Dallas Mavericks, entrepreneur Mark Cuban has also owned multiple Internet startups and a theater chain.
1958-
Computer scientist and engineer Mark Dean is credited with helping develop a number of landmark technologies, including the color PC monitor, the Industry Standard Architecture system bus and the first gigahertz chip.
1957-
1954-
Television producer Mark Goodson created many of the best-loved game shows of the 20th century, including What's My Line, The Price is Right and Family Feud.
1915-1992
1951-
TV star Mark Harmon has been on long-running shows like St. Elsewhere, Chicago Hope and NCIS.
1951-
An influential teacher in the 19th century, theologian Mark Hopkins stressed moral values over intellectual achievement and self-education over dogmatic education.
1802-1887
One of the most powerful hitters in baseball history, Mark McGwire briefly held the record for most home runs in a single season.
1963-
Olympic medalist Mark Phillips is renowned as the commoner who married Princess Anne.
1948-
Russian-born painter Mark Rothko was a pioneer of the Abstract Expressionist movement during the mid-20th century.
1903-1970
Mark Ruffalo is an actor who has become known most recently for his portrayal of Bruce Banner/The Hulk in the movie The Avengers.
1967-
Apostle Saint Mark was one of Christ's 70 disciples, one of the four evangelists and the traditional author of the second Gospel, The Book of Mark.
-68
American swimmer Mark Spitz set a world record at the 1972 Olympic Games, when he won seven gold medals across individual and team events.
1950-
An adventurer and wily intellectual, Mark Twain wrote the classic American novels The Adventures of Tom Sawyer and Adventures of Huckleberry Finn.
1835-1910
Mark Wahlberg got his start headlining the musical group Marky Mark and the Funky Bunch, later going on to a modeling career and acting success in Hollywood.
1971-
Mark Zuckerberg is co-founder and CEO of the social-networking website Facebook, as well as one of the world's youngest billionaires.
1984-