1970Born, New York City
49Credits
Mark Alexander Knox (born April 15, 1970), better known as Flex Alexander or Flex, is an American actor, comedian and dancer.
Known for
LuciferSimon Hallbrooks
Grey's AnatomyEvan Forrester
She's All ThatKadeem
Snakes on a PlaneThree G's
CSI: MiamiBeau Lendell2026UnrequitedErikMovie
2023The AssistantShawn FieldsMovie
2022Carl Weber's The Black HamptonsDevon aka Lojack · 1 episodeShow
2021KenanDerek · 1 episodeShow
2020TriggerMichael MassMovie
2020BallbusterLutherMovie
2019mixed-ishGeorge · 1 episodeShow
2019Maybe I'm FineJeffreyMovie
2018Carl Weber's The Family BusinessLow Jack · 2 episodesShow
2018Station 19Evan Forrester · 1 episodeShow
2017Love by the 10th DatePreacher HillMovie
2015Soul TiesJessieMovie
2013My Sister's WeddingMatthewMovie
2013Masters of SexWalter · 1 episodeShow
201324 Hour LoveBradfordMovie
2012The Client ListThe Wolf · 1 episodeShow
2010Blue BloodsDemarcus King · 1 episodeShow
2007The ListChetMovie
2007The Hills Have Eyes 2SargeMovie
2007Poor Boy's GameOssie ParisMovie
2007Love and Other Four Letter WordsArnoldMovie
2006Snakes on a PlaneThree G'sMovie
2005Her Minor ThingMartyMovie
2005Cuts1 episodeShow
2005Shira: The Vampire SamuraiSmall Change Willie (as Flex)Movie
2004Man in the Mirror: The Michael Jackson StoryMichael JacksonMovie
2004GasDamienMovie
2001Out ColdAnthonyMovie
1999Santa and PetePeteMovie
1999The Apartment ComplexMovie
1999The Parkers1 episodeShow
1999She's All ThatKadeemMovie
1998Modern VampiresTriggerMovie
1998IceKelvinMovie
1997Total Security13 episodesShow
1997Brooklyn SouthBuster · 1 episodeShow
1997The 6th ManJerrod SmithMovie
1997City of IndustryA RocMovie
1996Homeboys in Outer SpaceTyberius Walker · 21 episodesShow
1995Money TrainHoodMovie
1994New York Undercover1 episodeShow
1994Sister, SisterCold Dog · 1 episodeShow
1993Where I Live21 episodesShow
1992JuiceContest AuditionerMovie
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