Image of John Wisniski Jr.

John Wisniski Jr.

John Wisniski, Jr. is an American professional wrestler, better known as Greg "The Hammer" Valentine. He is the son of wrestler Johnny Valentine. In the course of his career, which has spanned over four decades, Valentine has held more than 40 championships, including the NWA United States Heavyweight Championship and the WWE Intercontinental Championship. An alumnus of WWE and World Championship Wrestling, he was inducted to the WWE Hall of Fame in 2004.


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Born:
Sep 20, 1951 In Seattle, Washington, USA
Movie/TV Credits:
103
First Appeared:
In the movie NWA Sam Muchnick Retirement Show 1982-01-01
Latest Project:
Movie WWE Maple Leaf Wrestling: December '85 2025
Known For
Filmography
Movie WWE Maple Leaf Wrestling: December '85 Greg "The Hammer" Valentine 2025
Series WWE's Most Wanted Treasures Greg "The Hammer" Valentine 2021-04-18
Series Biography: WWE Legends Greg "The Hammer" Valentine 2021-04-18
Movie Biography: “Rowdy” Roddy Piper Self 2021-04-25
Movie Midnight Massacre Caepio 2021-12-12
Movie Chris Jericho's 30th Anniversary Celebration Greg "The Hammer" Valentine 2020-10-07
Movie 350 Days Self 2019-04-02
Series All Elite Wrestling: Dynamite Greg Valentine 2019-10-02
Movie WWE: The U.S. Championship: A Legacy of Greatness Greg 'The Hammer' Valentine (archive footage) 2016-04-26
Movie At What Cost? Anatomy of Professional Wrestling Himself 2015-04-25
Movie Behind the Ropes: The Greatest Fraternity in the World Himself 2015-12-31
Movie WWE: 150 Best Pay-Per-View Matches, Vol 1 Himself 2014-03-11
Movie WWE: Starrcade - The Essential Collection Himself 2012-01-03
Movie Timeline: The History of WWE – 1985 – As Told By Greg Valentine Himself 2011-06-01
Movie JCW Legends and Icons Unknown 2011-12-08
Movie WWE: The History Of The Intercontinental Championship Himself 2008-11-25
Movie WWE: The History Of The WWE Championship Unknown 2006-09-05
Movie World Wrestling Legends: 6:05 - The Reunion Greg Valentine 2005-04-29
Movie WWE Hall of Fame 2004 Unknown 2004-03-12
Movie Heroes of Wrestling Greg "The Hammer" Valentine 1999-10-10
Movie WCW World War 3 1997 Greg "The Hammer" Valentine 1997-11-23
Series AWF Warriors of Wrestling Greg "The Hammer" Valentine 1995-03-06
Movie WWE Royal Rumble 1994 Greg "The Hammer" Valentine 1994-01-22
Series WWE Raw Greg "The Hammer" Valentine 1993-01-11
Movie WWE Survivor Series 1993 The Blue Knight 1993-11-24
Movie WWE Royal Rumble 1992 Greg "The Hammer" Valentine 1992-01-19
Movie WCW Wrestle War: WarGames Greg "The Hammer" Valentine 1992-05-17
Movie WWF SuperTape '92 Greg "The Hammer" Valentine 1992-02-27
Movie WCW Beach Blast Greg "The Hammer" Valentine 1992-06-20
Movie WCW Clash of The Champions XX: 20th Anniversary Greg "The Hammer" Valentine 1992-09-02
Movie WWE WrestleMania VII Greg "The Hammer" Valentine 1991-03-24
Movie WWE Royal Rumble 1991 Greg "The Hammer" Valentine 1991-01-19
Movie WWE Mega Matches Greg "The Hammer" Valentine 1991-03-28
Movie WWE Superstars & Stripes Forever: The March to WrestleMania VII Greg "The Hammer" Valentine 1991-03-17
Movie WWE U.K. Rampage 1991 Greg "The Hammer" Valentine 1991-04-21
Movie WWE Rampage '91 Greg "The Hammer" Valentine 1991-10-24
Movie WWE SummerSlam 1991 Greg "The Hammer" Valentine 1991-08-26
Movie WWE WrestleFest '91 Greg "The Hammer" Valentine 1991-07-25
Movie WWF/AJPW/NJPW Wrestling Summit Unknown 1990-04-13
Movie WWE Royal Rumble 1990 Greg "The Hammer" Valentine 1990-01-21
Movie WWE The Ultimate Challenge Special: The March to WrestleMania VI Greg "The Hammer" Valentine 1990-03-25
Movie WWF SuperTape vol. 2 Greg "The Hammer" Valentine 1990-07-25
Movie Battle of the WWE Superstars Greg Valentine 1990-08-23
Movie WWE Survivor Series 1990 Greg "The Hammer" Valentine 1990-11-22
Movie WWF Hottest Matches Greg "The Hammer" Valentine 1990-10-25
Movie The Ultimate Warrior Greg "The Hammer" Valentine 1989-06-28
Movie WWE Maple Leaf Wrestling: April '89 Greg "The Hammer" Valentine 1989-04-23
Movie WWE Royal Rumble 1989 Greg "The Hammer" Valentine 1989-01-15
Movie WWE Los Angeles Wrestling: January '89 Greg "The Hammer" Valentine 1989-01-29
Movie WWE WrestleMania V Greg "The Hammer" Valentine 1989-04-02
Movie WWE Wrestling at The Meadowlands: May '89 Greg "The Hammer" Valentine 1989-05-08
Movie The Best of the WWF: volume 20 Greg "The Hammer" Valentine 1989-08-09
Movie WWE SummerSlam 1989 Greg Valentine 1989-08-28
Movie WWE Survivor Series 1989 Greg "The Hammer" Valentine 1989-11-23
Movie WWE Demolition Greg "The Hammer" Valentine 1989-08-09
Movie Fan Favorites Greg Valentine 1989-08-09
Movie WWE Maple Leaf Wrestling: July '88 Greg "The Hammer" Valentine 1988-07-24
Movie WWE Maple Leaf Wrestling: April '88 Greg "The Hammer" Valentine 1988-04-24
Movie WWE WrestleMania IV Greg "The Hammer" Valentine 1988-03-27
Movie The Best of the WWF: volume 16 Around the World Greg "The Hammer" Valentine 1988-07-27
Movie WWE Wrestling at The Meadowlands: September '88 Greg "The Hammer" Valentine 1988-09-11
Movie WWE Survivor Series 1988 Greg "The Hammer" Valentine 1988-11-24
Movie WWE Los Angeles Wrestling: December '88 Greg "The Hammer" Valentine 1988-12-17
Movie WWE U.K. Rampage 1988 Greg "The Hammer" Valentine 1988-10-07
Movie The Best of the WWF: volume 10 Greg "The Hammer" Valentine 1987-03-01
Movie WWE Maple Leaf Wrestling: January '87 Greg "The Hammer" Valentine 1987-01-11
Movie Bob Uecker's Wacky World of Sports Greg "The Hammer" Valentine 1987-01-01
Movie WWE WrestleMania III Greg "The Hammer" Valentine 1987-03-29
Movie WWE Wrestling at The Meadowlands: January '87 Greg "The Hammer" Valentine 1987-01-05
Movie WWE Houston Wrestling: December '87 Greg "The Hammer" Valentine 1987-12-11
Movie The Best of the WWF: volume 14 Greg "The Hammer" Valentine 1987-12-15
Movie The Best of the WWF: volume 11 Greg "The Hammer" Valentine 1987-06-24
Movie WWE Survivor Series 1987 Greg Valentine 1987-11-26
Movie WWE Maple Leaf Wrestling: June '87 Greg "The Hammer" Valentine 1987-06-28
Movie WWE Houston Wrestling: October '87 Greg "The Hammer" Valentine 1987-10-09
Movie WrestleMania II Greg "The Hammer" Valentine 1986-04-07
Movie Ricky "The Dragon" Steamboat Greg "The Hammer" Valentine 1986-05-02
Movie The Best of the WWF: volume 7 Greg "The Hammer" Valentine 1986-06-06
Movie The Best of the WWF: volume 5 Greg "The Hammer" Valentine 1986-01-01
Movie Tag Team Champions Greg Valentine 1986-03-01
Movie WWE Houston Wrestling: October '86 Greg "The Hammer" Valentine 1986-10-19
Movie WWE The Big Event Greg "The Hammer" Valentine 1986-08-27
Movie The British Bulldogs Greg Valentine 1986-10-15
Movie WWE's Inside the Steel Cage Greg 'The Hammer' Valentine 1986-12-11
Movie The Best of the WWF: volume 9 Greg "The Hammer" Valentine 1986-10-15
Series WWF Wrestling Challenge Greg Valentine 1986-09-07
Series WWE Pay Per View Greg "The Hammer" Valentine 1985-03-31
Movie The WWF's Most Unusual Matches Greg 'The Hammer' Valentine 1985-01-01
Movie WWE Maple Leaf Wrestling: April '85 Greg "The Hammer" Valentine 1985-04-21
Movie WWF Hulkamania 1 Greg Valentine 1985-01-01
Movie WrestleMania Greg "The Hammer" Valentine 1985-03-31
Series Saturday Night's Main Event Unknown 1985-05-11
Movie WWE Maple Leaf Wrestling: October '85 Greg "The Hammer" Valentine 1985-10-13
Movie WWE Maple Leaf Wrestling: September '85 Greg "The Hammer" Valentine 1985-09-22
Movie The Best of the WWF: volume 4 Greg "The Hammer" Valentine 1985-09-01
Movie NWA Boogie Jam Greg Valentine 1984-03-17
Movie WWE The Brawl to End it All Greg "The Hammer" Valentine 1984-07-23
Movie WWE Maple Leaf Wrestling: September '84 Greg "The Hammer" Valentine 1984-09-23
Movie WWE Maple Leaf Wrestling: October '84 Greg "The Hammer" Valentine 1984-10-21
Movie NWA The Final Conflict Greg Valentine 1983-03-12
Movie NWA The Race to Starrcade Greg Valentine 1983-09-07
Movie NWA Starrcade 1983 Greg "The Hammer" Valentine 1983-11-24
Movie NWA Sam Muchnick Retirement Show Greg Valentine 1982-01-01
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