Flex Alexander

Mark Alexander Knox, born April 15, 1970, better known as Flex Alexander or Flex, is an American actor, comedian & dancer. He began his career while appearing on numerous of television sitcoms before portraying single father Flex Washington on the UPN sitcom One on One, 2001 to 2006. He also had a number of roles in many films including Modern Vampires, 1998, The Force, 1999, Out Cold, 2001, Book of Love: ''The Definitive Reason Why Men Are Dogs'', 2002, Gas, 2004, Snakes on a Plane, 2006, & Trigger, 2020. Born in Harlem, he is the son of Alethia Knox & Robert Whitehead. As a teen, he began dancing in New York night clubs earning the nickname "Flex" due to his acrobatic dance skills. After being discovered by DJ Spinderella, he began touring with rap trio Salt n Pepa & remained with the dance troupe for three years. In addition to dancing, he also choreographed for Mary J. Blige & Queen Latifah. In 1989, he made his stand up comedy debut & eventually turned to acting, making his film debut in the 1992 film Juice. His first television role was on the short lived 1993 ABC sitcom Where I Live, starring Doug E. Doug. Despite being critically acclaimed, the series was canceled that same year.