
Personal Info
Known For
Acting
Born
November 9, 1952 (age 73)
Place of Birth
Santa Cruz, California, USA
Stephen Quadros
Biography
Acting came to Stephen Quadros almost by default. He originally moved to Los Angeles to pursue a career as a drummer, where he achieved local success and radio airplay with the band SNOW, which featured Carlos Cavazo (Quiet Riot, Ratt) on guitar. Stephen was even flown to New York to audition for the group KISS.
But when repetitive hand injuries aborted his percussive pursuits, Quadros dove into acting, studying with a variety of respected teachers, including: Cameron Watson, William Alderson, Stella Adler, Milton Justice, Arthur Mendoza, Scott Bernstein, Michelle Danner and Mark Haining.
As an actor Quadros has starred, guest-starred or co-starred in over 50 films and television shows, working with such Hollywood luminaries as Bryan Cranston, Kathryn Bigelow, Miles Teller, Nicolas Winding Refn, John Hawkes, Cuba Gooding Jr., Peter Falk, David Caruso, Blair Underwood, Traci Lords and Angela Lansbury.
Stephen Quadros is also a martial arts expert, specializing in kickboxing and mixed martial arts (MMA), areas where he has been a practitioner, teacher and trainer for over 20 years.
Because of his combined talents, Stephen appeared in and served as fight technical advisor for "Cradle 2 the Grave (2003)", starring Jet Li, Mark Dacascos and DMX ("Cradle 2 The Grave" hit the theaters in February 2003 and went to #1). Additionally he choreographed one of the fight sequences in "Cradle".
Mister Quadros was also fight coordinator/choreographer and 2nd unit director for "Pit Fighter" (20th Century Fox) which was released in 2005. He was also fight technical advisor for "Exit Wounds" (2001) starring Steven Seagal, Michael Jai White and DMX, co-starred in "Sworn To Justice" with Black Belt hall of fame member Cynthia Rothrock and was the guest lead on a season premiere of the popular TV series "Walker, Texas Ranger", squaring off opposite martial arts icon Chuck Norris.
He was also one of the world's leading martial arts and combat sports journalists. In 1998 he became a columnist and contributing editor for Black Belt magazine, a position he held for over 3 years, where his monthly column, which he titled "FightSport", garnered him international attention. Black Belt felt strong enough about "Fightsport" (and Stephen) that they named an entire magazine after it and empowered him as editor. "Black Belt Presents: Fightsport, with Stephen Quadros" made it's debut nationally in February 2002. (Quadros participated in the first year of the publication to get the magazine launched and established, then exited to concentrate on film, television and sports broadcasting.)
Stephen Quadros is well known in martial arts circles around the globe for his role as host and/or television commentator for some of the largest and most successful fight shows in the world including Showtime Network's mixed martial art series: Strikeforce, as well as Pride Fighting Championships (pay per view), Glory Kickboxing (ESPN, CBS Sports). Mr. Quadros was given his nickname "The Fight Professor" while commentating on a show in Japan for K-1 in 1998.
Known For

TV
Knots Landing
Thug
1979

TV
CSI: Miami
Wayne Delroy
2002

TV
Columbo
Paramilitary Man #4
1971

TV
Numb3rs
Lance Dolan
2005

TV
Murder, She Wrote
Axel Dorsey
1984

TV
Without a Trace
Ray Logan
2002

TV
Matlock
Goldie
1986

TV
Pacific Blue
Freddy Banks
1996

TV
Beyond Belief: Fact or Fiction
Thief (segment "The Gathering")
1997

Film
The Smashing Machine
Stephen Quadros
2025

TV
Interrogation
Ray Pine
2020

TV
L.A. Heat
Mr. Sinclair
1999

Film
Never Back Down: No Surrender
Matty Ramos
2016

Film
Cradle 2 the Grave
Prison Guard Vogel
2003

Film
Sworn to Justice
Roach / Spovik
1996

Film
Glass Jaw
Boxing Referee
2018

Film
Strategic Command
Vlos
1997

Film
Martial Law
Suspect #1
1990

Film
Hologram Man
Thug
1995

Film
Demon Wind
Chuck
1990
Filmography
2025FilmThe Smashing Machineas Stephen Quadros2020TVInterrogationas Ray Pine2018FilmGlass Jawas Boxing Referee2016FilmNever Back Down: No Surrenderas Matty Ramos2014FilmDrakkenas Golg2005TVNumb3rsas Lance Dolan2003FilmCradle 2 the Graveas Prison Guard Vogel2002TVWithout a Traceas Ray Logan2002TVCSI: Miamias Wayne Delroy1999TVL.A. Heatas Mr. Sinclair1997TVBeyond Belief: Fact or Fictionas Thief (segment "The Gathering")1997FilmPrison of Secretsas Stu1997FilmStrategic Commandas Vlos1996FilmSworn to Justiceas Roach / Spovik1996TVPacific Blueas Freddy Banks1995FilmCyberTracker 2as Vickers1995FilmBloodfist 7: Manhuntas D. T1995FilmHologram Manas Thug1994FilmSilk Degreesas Willie1992FilmAuntie Lee's Meat Piesas Bob Evans1992FilmC.I.A. Code Name: Alexaas Max1991FilmShock 'Em Deadas Martin1990FilmMartial Lawas Suspect #11990FilmDemon Windas Chuck1990FilmThe Lost Platoonas Walker1989FilmDr. Caligarias Scarecrow1989FilmWarbirdsas Jeff Finks1986TVMatlockas Goldie1984TVMurder, She Wroteas Axel Dorsey1979TVKnots Landingas Thug1971TVColumboas Paramilitary Man #4