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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.
Filmography
Movies and shows, newest first
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2025
The Smashing Machine
Movie Stephen Quadros
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2020
Interrogation
TV show Ray Pine
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2018
Glass Jaw
Movie Boxing Referee
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2016
Never Back Down: No Surrender
Movie Matty Ramos
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2014
Drakken
Movie Golg
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2005
Numb3rs
TV show Lance Dolan
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2003
Cradle 2 the Grave
Movie Prison Guard Vogel
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2002
Without a Trace
TV show Ray Logan
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2002
CSI: Miami
TV show Wayne Delroy
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1999
L.A. Heat
TV show Mr. Sinclair
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1997
Beyond Belief: Fact or Fiction
TV show Thief (segment "The Gathering")
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1997
Prison of Secrets
Movie Stu
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1997
Strategic Command
Movie Vlos
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1996
Sworn to Justice
Movie Roach / Spovik
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1996
Pacific Blue
TV show Freddy Banks
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1995
CyberTracker 2
Movie Vickers
More credits
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1995
Bloodfist 7: Manhunt
Movie D. T
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1995
Hologram Man
Movie Thug
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1994
Silk Degrees
Movie Willie
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1992
Auntie Lee's Meat Pies
Movie Bob Evans
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1992
C.I.A. Code Name: Alexa
Movie Max
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1991
Shock 'Em Dead
Movie Martin
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1990
Martial Law
Movie Suspect #1
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1990
Demon Wind
Movie Chuck
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1990
The Lost Platoon
Movie Walker
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1989
Dr. Caligari
Movie Scarecrow
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1989
Warbirds
Movie Jeff Finks
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1986
Matlock
TV show Goldie
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1984
Murder, She Wrote
TV show Axel Dorsey
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1979
Knots Landing
TV show Thug
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1971
Columbo
TV show Paramilitary Man #4