List of Famous people who are 51

Karl Kevin Marginson is an English football manager and former player, who played in the Football League for Rotherham United He became FC United of Manchester's first manager on 22 June 2005, guiding them to four promotions to reach the National League North before leaving by mutual agreement on 24 October 2017.

Marc Guggenheim is an American screenwriter, television producer, comic book writer, and novelist. He is best known as the creator of the television series Eli Stone (2008–2009), Arrow, and Legends of Tomorrow (2016–present), executive producer of the animated series Tales of Arcadia (2016-present), as well as the writer of the feature films Green Lantern (2011), and Percy Jackson: Sea of Monsters (2013).

Roy Sætre Khantatat, commonly known as Roy Khan, is a Norwegian singer-songwriter who is the lead singer for the Norwegian progressive metal band Conception and was the lead vocalist for the symphonic power metal band Kamelot from 1997 until his departure in 2011. He co-wrote most of Kamelot's songs with the band's guitarist and founder Thomas Youngblood during his tenure. Khan had retired from music in 2011 until 2018, when he released a new solo song on YouTube and announced the return of Conception.

Bill Callahan is a writer/producer for such shows as Spin City, 8 Simple Rules, Oliver Beene, Scrubs and Psych.

Daniele Pecci is an Italian actor and director.

Stephan Schambach is a German entrepreneur and commerce pioneer having created the first standard software for online shopping in 1995 (Intershop). In addition to being the founder of Intershop Communications, Schambach also founded Demandware and NewStore.