John Wisniski Jr.
- Known for
- Acting
- Born
- September 20, 1951
- Birthplace
- Seattle, Washington, USA
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.
Filmography
Midnight Massacre 2025
as Caepio
Chris Jericho's 30th Anniversary Celebration 2020
as Greg "The Hammer" Valentine
350 Days 2019
as Self
Headstrong 2019
as Self
WWE: The U.S. Championship: A Legacy of Greatness 2016
as Greg 'The Hammer' Valentine (archive footage)
Behind the Ropes: The Greatest Fraternity in the World 2015
as Himself
At What Cost? Anatomy of Professional Wrestling 2015
as Himself
- WWE: 150 Best Pay-Per-View Matches, Vol 1
WWE: 150 Best Pay-Per-View Matches, Vol 1 2014
as Himself
WWE: Starrcade - The Essential Collection 2012
as Himself
- JCW Legends and Icons
JCW Legends and Icons 2011
Actor
Timeline The History of WWE – 1985 – As Told By Greg Valentine 2011
as Himself
WWE: The History Of The Intercontinental Championship 2008
as Himself
WWE: The History Of The WWE Championship 2006
Actor
The Greatest Wrestling Stars of the '80s 2005
as Self
- World Wrestling Legends: 6:05 - The Reunion
World Wrestling Legends: 6:05 - The Reunion 2005
as Greg Valentine
WWE Hall of Fame 2004 2004
as Self
Heroes of Wrestling 1999
as Greg "The Hammer" Valentine
WCW World War 3 1997 1997
as Greg "The Hammer" Valentine
WWE Royal Rumble 1994 1994
as Greg "The Hammer" Valentine
WWE Survivor Series 1993 1993
as The Blue Knight
The Immortal Hulk Hogan 1992
as Greg Valentine
WCW Clash of The Champions XX: 20th Anniversary 1992
as Greg "The Hammer" Valentine
WCW Beach Blast 1992
as Greg "The Hammer" Valentine
WCW WrestleWar 1992 1992
as Greg "The Hammer" Valentine
WWE SuperTape: Volume 5 1992
as Greg "The Hammer" Valentine
WWE Royal Rumble 1992 1992
as Greg "The Hammer" Valentine
WWE Rampage '91 1991
as Greg "The Hammer" Valentine
WWE SummerSlam 1991 1991
as Greg "The Hammer" Valentine
WWE WrestleFest '91 1991
as Greg "The Hammer" Valentine
WWE U.K. Rampage 1991 1991
as Greg "The Hammer" Valentine
WWE Mega Matches 1991
as Greg "The Hammer" Valentine
WWE WrestleMania VII 1991
as Greg "The Hammer" Valentine
WWE Superstars & Stripes Forever: The March to WrestleMania VII 1991
as Greg "The Hammer" Valentine
WWE Funniest Moments 1991
as Greg "The Hammer" Valentine
WWE Royal Rumble 1991 1991
as Greg "The Hammer" Valentine
WWE Survivor Series 1990 1990
as Greg "The Hammer" Valentine
WWE Hottest Matches 1990
as Greg "The Hammer" Valentine
Battle of the WWE Superstars 1990
as Greg Valentine
WWE SuperTape: Volume 2 1990
as Greg "The Hammer" Valentine
WWF/AJPW/NJPW Wrestling Summit 1990
Actor
WWE The Ultimate Challenge Special: The March to WrestleMania VI 1990
as Greg "The Hammer" Valentine
Wrestling Superheroes 1990
as Greg "The Hammer" Valentine
WWE Royal Rumble 1990 1990
as Greg "The Hammer" Valentine
WWE Survivor Series 1989 1989
as Greg "The Hammer" Valentine
WWE SummerSlam 1989 1989
as Greg Valentine
The Best of the WWF: volume 20 1989
as Greg "The Hammer" Valentine
Fan Favorites 1989
as Greg Valentine
Demolition: Witness the Power 1989
as Greg "The Hammer" Valentine
The Ultimate Warrior 1989
as Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: May '89
WWE Wrestling at The Meadowlands: May '89 1989
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '89
WWE Maple Leaf Wrestling: April '89 1989
as Greg "The Hammer" Valentine
WWE WrestleMania V 1989
as Greg "The Hammer" Valentine
- WWE Los Angeles Wrestling: January '89
WWE Los Angeles Wrestling: January '89 1989
as Greg "The Hammer" Valentine
WWE Royal Rumble 1989 1989
as Greg "The Hammer" Valentine
- WWE Los Angeles Wrestling: December '88
WWE Los Angeles Wrestling: December '88 1988
as Greg "The Hammer" Valentine
WWE Survivor Series 1988 1988
as Greg "The Hammer" Valentine
Macho Madness 1988
as Greg "The Hammer" Valentine
- WWE U.K. Rampage 1988
WWE U.K. Rampage 1988 1988
as Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: September '88
WWE Wrestling at The Meadowlands: September '88 1988
as Greg "The Hammer" Valentine
The Best of the WWF: volume 16 Around the World 1988
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: July '88
WWE Maple Leaf Wrestling: July '88 1988
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '88
WWE Maple Leaf Wrestling: April '88 1988
as Greg "The Hammer" Valentine
WWE WrestleMania IV 1988
as Greg "The Hammer" Valentine
Brutus "The Barber" Beefcake 1988
as Greg "The Hammer" Valentine
Wrestling's Most Embarrassing Moments 1987
as Greg "The Hammer" Valentine
The Best of the WWF: volume 14 1987
as Greg "The Hammer" Valentine
- WWE Houston Wrestling: December '87
WWE Houston Wrestling: December '87 1987
as Greg "The Hammer" Valentine
WWE Survivor Series 1987 1987
as Greg Valentine
- WWE Houston Wrestling: October '87
WWE Houston Wrestling: October '87 1987
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: June '87
WWE Maple Leaf Wrestling: June '87 1987
as Greg "The Hammer" Valentine
The Best of the WWF: volume 11 1987
as Greg "The Hammer" Valentine
WWE WrestleMania III 1987
as Greg "The Hammer" Valentine
The Best of the WWF: volume 10 1987
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: January '87
WWE Maple Leaf Wrestling: January '87 1987
as Greg "The Hammer" Valentine
- WWE Wrestling at The Meadowlands: January '87
WWE Wrestling at The Meadowlands: January '87 1987
as Greg "The Hammer" Valentine
Bob Uecker's Wacky World of Sports 1987
as Greg "The Hammer" Valentine
Inside the Steel Cage 1986
as Greg "The Hammer" Valentine
- WWE Houston Wrestling: October '86
WWE Houston Wrestling: October '86 1986
as Greg "The Hammer" Valentine
The Best of the WWF: volume 9 1986
as Greg "The Hammer" Valentine
The British Bulldogs 1986
as Greg Valentine
WWE The Big Event 1986
as Greg "The Hammer" Valentine
The Best of the WWF: volume 7 1986
as Greg "The Hammer" Valentine
Ricky "The Dragon" Steamboat 1986
as Greg "The Hammer" Valentine
WrestleMania II 1986
as Greg "The Hammer" Valentine
WWE Grudge Match 1986
as Greg "The Hammer" Valentine
Tag Team Champions 1986
as Greg Valentine
The Best of the WWF: volume 5 1986
as Greg "The Hammer" Valentine
The WWF's Amazing Managers 1985
as Greg 'The Hammer' Valentine
- WWE Maple Leaf Wrestling: December '85
WWE Maple Leaf Wrestling: December '85 1985
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: October '85
WWE Maple Leaf Wrestling: October '85 1985
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: September '85
WWE Maple Leaf Wrestling: September '85 1985
as Greg "The Hammer" Valentine
The Best of the WWF: volume 4 1985
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: April '85
WWE Maple Leaf Wrestling: April '85 1985
as Greg "The Hammer" Valentine
WrestleMania 1985
as Greg "The Hammer" Valentine
Hulkamania 1 1985
as Greg Valentine
Most Unusual Matches 1985
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: October '84
WWE Maple Leaf Wrestling: October '84 1984
as Greg "The Hammer" Valentine
- WWE Maple Leaf Wrestling: September '84
WWE Maple Leaf Wrestling: September '84 1984
as Greg "The Hammer" Valentine
WWE The Brawl to End it All 1984
as Greg "The Hammer" Valentine
NWA Boogie Jam 1984
as Greg Valentine
NWA Starrcade 1983 1983
as Greg "The Hammer" Valentine
- NWA The Race to Starrcade
NWA The Race to Starrcade 1983
as Greg Valentine
NWA The Final Conflict 1983
as Greg Valentine
- NWA Sam Muchnick Retirement Show
NWA Sam Muchnick Retirement Show 1982
as Greg Valentine
Credits from TMDB.