Flex Alexander was born on 01 Apr 1970 in New York City, New York, USA. His birth name was Marc Alexander Knox. His height is 193cm.

Flex Alexander appeared in the movie City of Industry(1997), "Girlfriends"(2000), Her Minor Thing(2005), Juice(1992), Love... & Other 4 Letter Words(2007), Out Cold(2001), She's All That(1999), The Hills Have Eyes II(2007), The Sixth Man(1997)。