Acting · Seattle, Washington, USA · Born September 20, 1951
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.
MovieMidnight Massacre
2025
as Caepio
TVBiography: WWE Legends
2021
as Greg "The Hammer" Valentine
TVWWE's Most Wanted Treasures
2021
as Greg "The Hammer" Valentine
MovieChris Jericho's 30th Anniversary Celebration
2020
as Greg "The Hammer" Valentine
TVUndertaker: The Last Ride
2020
as Greg Valentine (archive footage)
TVAll Elite Wrestling: Dynamite
2019
as Greg Valentine
Movie350 Days
2019
as Self
MovieHeadstrong
2019
as Self
MovieWWE: The U.S. Championship: A Legacy of Greatness
2016
as Greg 'The Hammer' Valentine (archive footage)
MovieBehind the Ropes: The Greatest Fraternity in the World
2015
as Himself
MovieAt What Cost? Anatomy of Professional Wrestling
2015
as Himself
WWE: 150 Best Pay-Per-View Matches, Vol 1
2014
as Himself
MovieWWE: Starrcade - The Essential Collection
2012
as Himself
JCW Legends and Icons
2011
MovieTimeline The History of WWE – 1985 – As Told By Greg Valentine
2011
as Himself
MovieWWE: The History Of The Intercontinental Championship
2008
as Himself
MovieWWE: The History Of The WWE Championship
2006
MovieThe Greatest Wrestling Stars of the '80s
2005
as Self
World Wrestling Legends: 6:05 - The Reunion
2005
as Greg Valentine
MovieWWE Hall of Fame 2004
2004
as Self
MovieHeroes of Wrestling
1999
as Greg "The Hammer" Valentine
MovieWCW World War 3 1997
1997
as Greg "The Hammer" Valentine
AWF Warriors of Wrestling
1995
as Greg "The Hammer" Valentine
MovieWWE Royal Rumble 1994
1994
as Greg "The Hammer" Valentine
MovieWWE Survivor Series 1993
1993
as The Blue Knight
TVRaw
1993
as Greg "The Hammer" Valentine
MovieThe Immortal Hulk Hogan
1992
as Greg Valentine
MovieWCW Clash of The Champions XX: 20th Anniversary
1992
as Greg "The Hammer" Valentine
MovieWCW Beach Blast
1992
as Greg "The Hammer" Valentine
MovieWCW WrestleWar 1992
1992
as Greg "The Hammer" Valentine
MovieWWE SuperTape: Volume 5
1992
as Greg "The Hammer" Valentine
MovieWWE Royal Rumble 1992
1992
as Greg "The Hammer" Valentine
MovieWWE Rampage '91
1991
as Greg "The Hammer" Valentine
MovieWWE SummerSlam 1991
1991
as Greg "The Hammer" Valentine
MovieWWE WrestleFest '91
1991
as Greg "The Hammer" Valentine
MovieWWE U.K. Rampage 1991
1991
as Greg "The Hammer" Valentine
MovieWWE Mega Matches
1991
as Greg "The Hammer" Valentine
MovieWWE WrestleMania VII
1991
as Greg "The Hammer" Valentine
MovieWWE Superstars & Stripes Forever: The March to WrestleMania VII
1991
as Greg "The Hammer" Valentine
MovieWWE Funniest Moments
1991
as Greg "The Hammer" Valentine
MovieWWE Royal Rumble 1991
1991
as Greg "The Hammer" Valentine
MovieWWE Survivor Series 1990
1990
as Greg "The Hammer" Valentine
MovieWWE Hottest Matches
1990
as Greg "The Hammer" Valentine
MovieBattle of the WWE Superstars
1990
as Greg Valentine
MovieWWE SuperTape: Volume 2
1990
as Greg "The Hammer" Valentine
MovieWWF/AJPW/NJPW Wrestling Summit
1990
MovieWWE The Ultimate Challenge Special: The March to WrestleMania VI
1990
as Greg "The Hammer" Valentine
MovieWrestling Superheroes
1990
as Greg "The Hammer" Valentine
MovieWWE Royal Rumble 1990
1990
as Greg "The Hammer" Valentine
MovieWWE Survivor Series 1989
1989
as Greg "The Hammer" Valentine
MovieWWE SummerSlam 1989
1989
as Greg Valentine
MovieDemolition: Witness the Power
1989
as Greg "The Hammer" Valentine
MovieFan Favorites
1989
as Greg Valentine
MovieThe Best of the WWF: volume 20
1989
as Greg "The Hammer" Valentine
MovieThe Ultimate Warrior
1989
as Greg "The Hammer" Valentine
WWE Wrestling at The Meadowlands: May '89
1989
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: April '89
1989
as Greg "The Hammer" Valentine
MovieWWE WrestleMania V
1989
as Greg "The Hammer" Valentine
WWE Los Angeles Wrestling: January '89
1989
as Greg "The Hammer" Valentine
MovieWWE Royal Rumble 1989
1989
as Greg "The Hammer" Valentine
WWE Los Angeles Wrestling: December '88
1988
as Greg "The Hammer" Valentine
MovieWWE Survivor Series 1988
1988
as Greg "The Hammer" Valentine
MovieMacho Madness
1988
as Greg "The Hammer" Valentine
WWE U.K. Rampage 1988
1988
as Greg "The Hammer" Valentine
WWE Wrestling at The Meadowlands: September '88
1988
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 16 Around the World
1988
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: July '88
1988
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: April '88
1988
as Greg "The Hammer" Valentine
MovieWWE WrestleMania IV
1988
as Greg "The Hammer" Valentine
TVClash of the Champions
1988
as Greg "The Hammer" Valentine
MovieBrutus "The Barber" Beefcake
1988
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 14
1987
as Greg "The Hammer" Valentine
MovieWrestling's Most Embarrassing Moments
1987
as Greg "The Hammer" Valentine
WWE Houston Wrestling: December '87
1987
as Greg "The Hammer" Valentine
MovieWWE Survivor Series 1987
1987
as Greg Valentine
WWE Houston Wrestling: October '87
1987
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: June '87
1987
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 11
1987
as Greg "The Hammer" Valentine
MovieWWE WrestleMania III
1987
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 10
1987
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: January '87
1987
as Greg "The Hammer" Valentine
WWE Wrestling at The Meadowlands: January '87
1987
as Greg "The Hammer" Valentine
MovieBob Uecker's Wacky World of Sports
1987
as Greg "The Hammer" Valentine
MovieInside the Steel Cage
1986
as Greg "The Hammer" Valentine
WWE Houston Wrestling: October '86
1986
as Greg "The Hammer" Valentine
MovieThe British Bulldogs
1986
as Greg Valentine
MovieThe Best of the WWF: volume 9
1986
as Greg "The Hammer" Valentine
TVWWF Wrestling Challenge
1986
as Greg Valentine
TVWWF Superstars
1986
as Greg "The Hammer" Valentine
MovieWWE The Big Event
1986
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 7
1986
as Greg "The Hammer" Valentine
MovieRicky "The Dragon" Steamboat
1986
as Greg "The Hammer" Valentine
MovieWrestleMania II
1986
as Greg "The Hammer" Valentine
MovieWWE Grudge Match
1986
as Greg "The Hammer" Valentine
MovieTag Team Champions
1986
as Greg Valentine
MovieThe Best of the WWF: volume 5
1986
as Greg "The Hammer" Valentine
MovieThe WWF's Amazing Managers
1985
as Greg 'The Hammer' Valentine
WWE Maple Leaf Wrestling: December '85
1985
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: October '85
1985
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: September '85
1985
as Greg "The Hammer" Valentine
MovieThe Best of the WWF: volume 4
1985
as Greg "The Hammer" Valentine
TVWWE Saturday Night's Main Event
1985
as Greg Valentine
WWE Maple Leaf Wrestling: April '85
1985
as Greg "The Hammer" Valentine
MovieWrestleMania
1985
as Greg "The Hammer" Valentine
TVWWE Pay Per View
1985
MovieMost Unusual Matches
1985
as Greg "The Hammer" Valentine
MovieWWF Hulkamania 1
1985
as Greg Valentine
WWE Maple Leaf Wrestling: October '84
1984
as Greg "The Hammer" Valentine
WWE Maple Leaf Wrestling: September '84
1984
as Greg "The Hammer" Valentine
MovieWWE The Brawl to End it All
1984
as Greg "The Hammer" Valentine
TVTuesday Night Titans
1984
as Greg "The Hammer" Valentine
MovieNWA Boogie Jam
1984
as Greg Valentine
MovieNWA Starrcade 1983
1983
as Greg "The Hammer" Valentine
TVWCW Arena Shows
1983
as Greg Valentine
NWA The Race to Starrcade
1983
as Greg Valentine
MovieNWA The Final Conflict
1983
as Greg Valentine
NWA Sam Muchnick Retirement Show
1982
as Greg Valentine
TVMid-Atlantic Championship Wrestling
1981
as Greg Valentine
TVWWF All-Star Wrestling
1975
as Greg Valentine
TVWWE Old School
1973
as Greg Valentine
