Flex Alexander
Mark Alexander Knox (born April 15, 1970), known professionally as Flex Alexander or Flex, is an American actor, comedian and dancer. Having made his television debut as Reggie Coltrane in the critically acclaimed ABC sitcom Where I Live (1993), he became known for his role as single father Flex Washington in the UPN sitcom One on One (2001–2006), for which he was nominated for three NAACP Image Awards. Alexander was nominated for a fourth NAACP Image Award in 2005 for his portrayal of Michael Jackson in the VH1 biographical drama Man in the Mirror: The Michael Jackson Story.
Also recorded as Mark Alexander Knox
Flex Alexander
- Name
- Flex Alexander
- Birth Name
- Mark Alexander Knox
- Born
- 15 April 1970
- Birthplace
- New York City, U.S.
- Occupation
- * Actor
- Nationality
- United States
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Mark Alexander Knox (born April 15, 1970), known professionally as Flex Alexander or Flex, is an American actor, comedian and dancer. Having made his television debut as Reggie Coltrane in the critically acclaimed ABC sitcom Where I Live (1993), he became known for his role as single father Flex Washington in the UPN sitcom One on One (2001–2006), for which he was nominated for three NAACP Image Awards. Alexander was nominated for a fourth NAACP Image Award in 2005 for his portrayal of Michael Jackson in the VH1 biographical drama Man in the Mirror: The Michael Jackson Story.
Admitted source layer · organised and presented by VALÉORINE
Reference Check
Propose documentary evidence for Flex Alexander. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q82488 · wikipedia · Flex Alexander
In this article
Biography
Biography
He has also appeared in films such as Juice (1992), She's All That (1999), Snakes on a Plane (2006), and The Hills Have Eyes 2 (2007). Alexander has had recurring television roles in the UPN sitcom Girlfriends (2000–2001), the VH1 comedy-drama series Single Ladies (2012) and the ABC sitcom Mixed-ish (2020–2021).
Key facts
Key facts
• Name — Flex Alexander • Birth Name — Mark Alexander Knox • Born — 15 April 1970 • Birthplace — New York City, U.S. • Occupation — * Actor • comedian • dancer • Other Names — Flex, Marc "Flex" Knox • Years Active — 1989–present • Children — 2
Early life
Early life
Born in Harlem, Alexander is the son of Alethia Knox and 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 and remained with the dance troupe for three years. In addition to dancing, Alexander also choreographed for Mary J. Blige and Queen Latifah. In 1989, he made his stand-up comedy debut and eventually turned to acting, making his film debut in the 1992 film Juice. Alexander also was a regular cast member of the sketch comedy show Uptown Comedy Club from 1992 to 1994.
Career
Career
Alexander's 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. Alexander then guest starred on episodes of Sister, Sister and The Cosby Mysteries before moving to Los Angeles in 1995 to concentrate on acting. In 1996, he landed a starring role on another short-lived sitcom Homeboys in Outer Space. The series was critically panned and canceled the following year. Later that year, Alexander co-starred in yet another short-lived series, the Steven Bochco-created Total Security. Following Total Securitys run, Alexander guest starred on Brooklyn South and The Parkers, and also had roles in several films including the 1998 direct-to-video release Backroom Bodega Boyz and She's All That (1999). From 2000 to 2001, Alexander appeared as Maya Wilkes' husband Darnell during the first season of the UPN sitcom Girlfriends. He left Girlfriends to star as single father Flexter Alexander "Flex" Barnes Washington on the UPN sitcom One on One, a series he created and produced. For his role on the series, Alexander was nominated for three NAACP Image Awards and two BET Comedy Awards. In 2004, he portrayed Michael Jackson in the VH1 television biopic Man in the Mirror: The Michael Jackson Story, which garnered him another NAACP Image Award nomination. He refused to play Jackson with prosthetics, but did mimic his voice, copied mannerisms and had a makeup job done to lighten his skin tone. He also refused to "cast judgement" over the singer's legal troubles of the time and said "we should pray for him". Alexander returned to One on One for two more seasons, however, during the last season, his character was written out and reduced to a recurring role when the show's premise was rebooted. Following the end of One on One, Alexander had roles in the 2006 film Snakes on a Plane, opposite Samuel L. Jackson, and the 2007 horror film The Hills Have Eyes 2. He also had a role in Clement Virgo's Poor Boy's Game, with Danny Glover. Alexander's most recent role was in a 2007 episode of CSI: Miami. Flex and his wife, Shanice, had their own reality show Flex & Shanice that premiered on November 1, 2014, on the OWN. In 2022, Flex was cast as "Pookie" in the stage adaptation of New Jack City: Live on Stage, written, produced and directed by urban playwright and film producer Je'Caryous Johnson. The production is currently on tour in nine cities.
Personal life
Personal life
Alexander, a born-again Christian, married R&B singer Shanice Wilson on February 19, 2000. They have two children.
Television
Television
• Year — Title — Role — Notes • 1992 — Uptown Comedy Club — Various Characters — Main Cast: Season 1 • 1993 — Where I Live — Reggie Coltrane — Main Cast • 1994 — Sister, Sister — Cold Dog — Episode: "The Concert" • New York Undercover — Mecca — Episode: "The Friendly Neighborhood Dealer" • 1995 — Def Comedy Jam — Himself — Episode #5 • 1995 — The Cosby Mysteries — Partygoer — Episode: "The Medium Is the Message" • 1996–1997 — Homeboys in Outer Space — Tyberius Walker — Main Cast • 1997 — Moesha — Dread — Episode: "Cold Busted" • Brooklyn South — Buster — Episode: "McMurder One" • Total Security — Neville Watson — Main Cast • 2000 — The Parkers — Andy — Episode: "J.C. Bowl" • 2000–2001 — Girlfriends — Darnell Wilkes — Recurring Cast: Season 1 • 2001–2006 — One on One — Flex Washington — Main Cast: Season 1–4, Recurring Cast: Season 5 • 2005 — Cuts — Episode: "Keeping It Real" • 2007 — CSI: Miami — Martin Wilson — Episode: "Deep Freeze" • 2010 — Blue Bloods — Detective DeMarcus King — Episode: "Pilot" • CSI: Miami — Beau Lendell — Episode: "Miami, We Have a Problem" • 2012 — Sketchy — Kyrone — Episode: "Beets by Dre" • Single Ladies — James Blackwell — Recurring Cast: Season 2 • 2013 — The Client List — The Wolf — Episode: "Unanswered Prayers" • Masters of Sex — Walter — Episode: "Love and Marriage" • 2014–2016 — Flex & Shanice — Himself — Main Cast • 2016 — Lucifer — Simon Hallbrooks — Episode: "Homewrecker" • 2017 — Lawd Have Mercy — Himself/Host — Main Host • 2018 — In the Cut — Mr. Mustard — Episode: "The Big Day" • Station 19 — Evan Forrester — Episode: "Under the Surface" • Grey's Anatomy — Episode: "Momma Knows Best" • 2020–2021 — Mixed-ish — George — Guest: Season 1, Recurring Cast: Season 2 • 2020–2024 — The Family Business — Low Jack — Guest: Season 2, Recurring Cast: Season 3–5 • 2021 — Kenan — Derek — Episode: "Flirting" • 2022 — American Gangster: Trap Queens — Himself — Episode: "Lonett Williams" • 2023 — The Black Hamptons — - — Episode: "Trouble in Paradise" • 2024 — The Ms. Pat Show — Pastor Jenkins — Episode: "The Book of Denise"
Music videos
Music videos
• Year — Artist — Song • 1991 — Slick Rick — "Mistakes of a Woman in Love with Other Men" • Crystal Waters — "Gypsy Woman (She's Homeless)" • 1992 — SWV — "You're Always On My Mind" • 2006 — Shanice — "Take Care of U"
Identity
Identity
Flex Alexander is recorded as actor and television producer.
Film
• Year — Title — Role — Notes • 1992 — Juice — Contest Auditioner • 1995 — Money Train — Hood • 1997 — City of Industry — A-Roc • The Sixth Man — Jerrod Smith • 1998 — Modern Vampires — Trigger — TV movie • Ice — Kelvin — TV movie • 1999 — She's All That — Kadeem • The Apartment Complex — Miles — TV movie • Santa and Pete — Pete — TV movie • 2001 — Out Cold — Anthony • 2004 — Man in the Mirror: The Michael Jackson Story — Michael Jackson — TV movie • Gas — Damon • 2005 — Her Minor Thing — Marty • Shira: The Vampire Samurai — Willie 'Small Change Willie' — Video • 2006 — Snakes on a Plane — Clarence "Three G's" Dewey • 2007 — Love... & Other 4 Letter Words — Arnold • Poor Boy's Game — Ossie Paris • The Hills Have Eyes 2 — SGT Jeff 'Sarge' Millstone • The List — Chet • 2013 — 24 Hour Love — Bradford • My Sister's Wedding — Matthew • 2015 — Soul Ties — Jessie • 2016 — Grandma's House — Thomas • 2017 — Love by the 10th Date — Preacher Hill — TV movie • 2019 — Maybe I'm Fine — Jeffrey • 2020 — Ballbuster — Luther • Trigger — Michael Mass • 2023 — The Assistant — Shawn Fields
Primary material
Documents and archives
reference work
- “Flex Alexander”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
institutional register
- Wikidata, structured authority record Q82488: Flex Alexander
General reference · Wikimedia Foundation
Awards and nominations
• Award — Year — Category — Nominated work — Result • BET Comedy Awards — 2004 — Outstanding Lead Actor in a Comedy Series — One on One • 2005 — Outstanding Lead Actor in a Comedy Series — One on One • NAACP Image Awards — 2003 — Outstanding Actor in a Comedy Series — One on One • 2004 — Outstanding Actor in a Comedy Series — One on One • 2005 — Outstanding Actor in a Television Movie, Mini-Series or Dramatic Special — Man in the Mirror: The Michael Jackson Story • Outstanding Actor in a Comedy Series — One on One
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
reference work
Secondary witnessinstitutional register
Wikidata, structured authority record Q82488: Flex AlexanderWikimedia Foundation
General reference
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
Elsewhere in Film memorabilia
37,408 published records in this field, each with its sources named.
- Flavio InsinnaPerson
- Flavio MedinaPerson
- Flávio MigliaccioPerson
- Flavio MogheriniPerson
- Flip MarkPerson
- Flip WilsonPerson
- Flo AnkahPerson
- Flonja KodheliPerson
Best supported in this field
For owners
Own a work by Flex Alexander?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.