Flex Alexander
Acting
60
Acting Credits
Biography
Mark Alexander Knox (born April 15, 1970), better known as Flex Alexander or Flex, is an American actor, comedian and dancer.
Known For
Filmography
Unrequited
2026
as Erik
The Assistant
2023
as Shawn Fields
Carl Weber's The Black Hamptons
2022
as Devon aka Lojack
Kenan
2021
as Derek
Ballbuster
2020
as Luther
Trigger
2020
as Michael Mass
Maybe I'm Fine
2019
as Jeffrey
mixed-ish
2019
as George
And I Danced
2018
as Self
Station 19
2018
as Evan Forrester
Carl Weber's The Family Business
2018
as Low Jack
Love by the 10th Date
2017
as Preacher Hill
Lucifer
2016
as Simon Hallbrooks
Soul Ties
2015
as Jessie
My Sister's Wedding
2013
as Matthew
24 Hour Love
2013
as Bradford
Masters of Sex
2013
as Walter
The Client List
2012
as The Wolf
Gotham Comedy Live
2012
as Self - Host
Steve Harvey
2012
as Self
Blue Bloods
2010
as Demarcus King
Poor Boy's Game
2007
as Ossie Paris
The List
2007
as Chet
Love and Other Four Letter Words
2007
as Arnold
The Hills Have Eyes 2
2007
as Sarge
Snakes on a Blog
2007
as Self
Snakes on a Plane: Meet the Reptiles
2007
as Self
Snakes on a Set: Behind the Scenes
2007
as Self
The Snake Pit: On the Set of 'Snakes on a Plane'
2007
as Self
Snakes on a Plane
2006
as Three G's
Pure Venom: The Making of Snakes on a Plane
2006
as Self
Her Minor Thing
2005
as Marty
Shira: The Vampire Samurai
2005
as Small Change Willie (as Flex)
Cuts
2005
Grey's Anatomy
2005
as Evan Forrester
Gas
2004
as Damien
Man in the Mirror: The Michael Jackson Story
2004
as Michael Jackson
Sweet Oranges
2004
as Himself
On Air with Ryan Seacrest
2004
as Celebrity Courtyard Correspondent
CSI: Miami
2002
as Beau Lendell
Out Cold
2001
as Anthony
One on One
2001
as Flex Washington
Girlfriends
2000
as Darnell Wilkes
Santa and Pete
1999
as Pete
The Apartment Complex
1999
She's All That
1999
as Kadeem
The Parkers
1999
Ice
1998
as Kelvin
Modern Vampires
1998
as Trigger
City of Industry
1997
as A Roc
The 6th Man
1997
as Jerrod Smith
Brooklyn South
1997
as Buster
Total Security
1997
Moesha
1996
as Dread
Homeboys in Outer Space
1996
as Tyberius Walker
Money Train
1995
as Hood
Sister, Sister
1994
as Cold Dog
New York Undercover
1994
Where I Live
1993
Juice
1992
as Contest Auditioner