John Wisniski Jr.
ActorJohn 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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KNOWN FOR
FILMOGRAPHY
ACTOR104
Midnight Massacre
2025
Caepio
Chris Jericho's 30th Anniversary Celebration
2020
Greg "The Hammer" Valentine
350 Days
2019
Self
Headstrong
2019
Self
WWE: The U.S. Championship: A Legacy of Greatness
2016
Greg 'The Hammer' Valentine (archive footage)
Behind the Ropes: The Greatest Fraternity in the World
2015
Himself
At What Cost? Anatomy of Professional Wrestling
2015
Himself
- WWE: 150 Best Pay-Per-View Matches, Vol 1
WWE: 150 Best Pay-Per-View Matches, Vol 1
2014
Himself
WWE: Starrcade - The Essential Collection
2012
Himself
Timeline The History of WWE – 1985 – As Told By Greg Valentine
2011
Himself
- JCW Legends and Icons
JCW Legends and Icons
2011
WWE: The History Of The Intercontinental Championship
2008
Himself
WWE: The History Of The WWE Championship
2006
- World Wrestling Legends: 6:05 - The Reunion
World Wrestling Legends: 6:05 - The Reunion
2005
Greg Valentine
The Greatest Wrestling Stars of the '80s
2005
Self
WWE Hall of Fame 2004
2004
Self
Heroes of Wrestling
1999
Greg "The Hammer" Valentine
WCW World War 3 1997
1997
Greg "The Hammer" Valentine
WWE Royal Rumble 1994
1994
Greg "The Hammer" Valentine
WWE Survivor Series 1993
1993
The Blue Knight
WWE SuperTape: Volume 5
1992
Greg "The Hammer" Valentine
WCW Beach Blast
1992
Greg "The Hammer" Valentine
WCW Clash of The Champions XX: 20th Anniversary
1992
Greg "The Hammer" Valentine
WWE Royal Rumble 1992
1992
Greg "The Hammer" Valentine
WCW WrestleWar 1992
1992
Greg "The Hammer" Valentine
The Immortal Hulk Hogan
1992
Greg Valentine
WWE WrestleFest '91
1991
Greg "The Hammer" Valentine
WWE Mega Matches
1991
Greg "The Hammer" Valentine
WWE Rampage '91
1991
Greg "The Hammer" Valentine
WWE WrestleMania VII
1991
Greg "The Hammer" Valentine
WWE Royal Rumble 1991
1991
Greg "The Hammer" Valentine
WWE SummerSlam 1991
1991
Greg "The Hammer" Valentine
WWE Superstars & Stripes Forever: The March to WrestleMania VII
1991
Greg "The Hammer" Valentine
WWE U.K. Rampage 1991
1991
Greg "The Hammer" Valentine
WWE Funniest Moments
1991
Greg "The Hammer" Valentine
Battle of the WWE Superstars
1990
Greg Valentine
WWE Hottest Matches
1990
Greg "The Hammer" Valentine
WWE SuperTape: Volume 2
1990
Greg "The Hammer" Valentine
WWE Survivor Series 1990
1990
Greg "The Hammer" Valentine
WWF/AJPW/NJPW Wrestling Summit
1990
WWE The Ultimate Challenge Special: The March to WrestleMania VI
1990
Greg "The Hammer" Valentine
WWE Royal Rumble 1990
1990
Greg "The Hammer" Valentine
Wrestling Superheroes
1990
Greg "The Hammer" Valentine
WWE WrestleMania V
1989
Greg "The Hammer" Valentine
Demolition: Witness the Power
1989
Greg "The Hammer" Valentine
The Ultimate Warrior
1989
Greg "The Hammer" Valentine
Fan Favorites
1989
Greg Valentine
The Best of the WWF: volume 20
1989
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '89
WWE Maple Leaf Wrestling: April '89
1989
Greg "The Hammer" Valentine
- WWE Los Angeles Wrestling: January '89
WWE Los Angeles Wrestling: January '89
1989
Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: May '89
WWE Wrestling at The Meadowlands: May '89
1989
Greg "The Hammer" Valentine
WWE Royal Rumble 1989
1989
Greg "The Hammer" Valentine
WWE Survivor Series 1989
1989
Greg "The Hammer" Valentine
WWE SummerSlam 1989
1989
Greg Valentine
WWE Survivor Series 1988
1988
Greg "The Hammer" Valentine
The Best of the WWF: volume 16 Around the World
1988
Greg "The Hammer" Valentine
- WWE U.K. Rampage 1988
WWE U.K. Rampage 1988
1988
Greg "The Hammer" Valentine
- WWE Los Angeles Wrestling: December '88
WWE Los Angeles Wrestling: December '88
1988
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '88
WWE Maple Leaf Wrestling: April '88
1988
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: July '88
WWE Maple Leaf Wrestling: July '88
1988
Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: September '88
WWE Wrestling at The Meadowlands: September '88
1988
Greg "The Hammer" Valentine
WWE WrestleMania IV
1988
Greg "The Hammer" Valentine
Macho Madness
1988
Greg "The Hammer" Valentine
Brutus "The Barber" Beefcake
1988
Greg "The Hammer" Valentine
WWE WrestleMania III
1987
Greg "The Hammer" Valentine
Bob Uecker's Wacky World of Sports
1987
Greg "The Hammer" Valentine
The Best of the WWF: volume 10
1987
Greg "The Hammer" Valentine
The Best of the WWF: volume 11
1987
Greg "The Hammer" Valentine
The Best of the WWF: volume 14
1987
Greg "The Hammer" Valentine
- WWE Houston Wrestling: October '87
WWE Houston Wrestling: October '87
1987
Greg "The Hammer" Valentine
- WWE Houston Wrestling: December '87
WWE Houston Wrestling: December '87
1987
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: January '87
WWE Maple Leaf Wrestling: January '87
1987
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: June '87
WWE Maple Leaf Wrestling: June '87
1987
Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: January '87
WWE Wrestling at The Meadowlands: January '87
1987
Greg "The Hammer" Valentine
WWE Survivor Series 1987
1987
Greg Valentine
Wrestling's Most Embarrassing Moments
1987
Greg "The Hammer" Valentine
WrestleMania II
1986
Greg "The Hammer" Valentine
The British Bulldogs
1986
Greg Valentine
Ricky "The Dragon" Steamboat
1986
Greg "The Hammer" Valentine
The Best of the WWF: volume 7
1986
Greg "The Hammer" Valentine
The Best of the WWF: volume 5
1986
Greg "The Hammer" Valentine
The Best of the WWF: volume 9
1986
Greg "The Hammer" Valentine
- WWE Houston Wrestling: October '86
WWE Houston Wrestling: October '86
1986
Greg "The Hammer" Valentine
Tag Team Champions
1986
Greg Valentine
WWE The Big Event
1986
Greg "The Hammer" Valentine
Inside the Steel Cage
1986
Greg "The Hammer" Valentine
WWE Grudge Match
1986
Greg "The Hammer" Valentine
WrestleMania
1985
Greg "The Hammer" Valentine
The Best of the WWF: volume 4
1985
Greg "The Hammer" Valentine
Most Unusual Matches
1985
Greg "The Hammer" Valentine
WWF Hulkamania 1
1985
Greg Valentine
- WWE Maple Leaf Wrestling: April '85
WWE Maple Leaf Wrestling: April '85
1985
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: September '85
WWE Maple Leaf Wrestling: September '85
1985
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: October '85
WWE Maple Leaf Wrestling: October '85
1985
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: December '85
WWE Maple Leaf Wrestling: December '85
1985
Greg "The Hammer" Valentine
The WWF's Amazing Managers
1985
Greg 'The Hammer' Valentine
- WWE Maple Leaf Wrestling: September '84
WWE Maple Leaf Wrestling: September '84
1984
Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: October '84
WWE Maple Leaf Wrestling: October '84
1984
Greg "The Hammer" Valentine
WWE The Brawl to End it All
1984
Greg "The Hammer" Valentine
NWA Boogie Jam
1984
Greg Valentine
NWA Starrcade 1983
1983
Greg "The Hammer" Valentine
NWA The Final Conflict
1983
Greg Valentine
- NWA The Race to Starrcade
NWA The Race to Starrcade
1983
Greg Valentine
- NWA Sam Muchnick Retirement Show
NWA Sam Muchnick Retirement Show
1982
Greg Valentine
