John Wisniski Jr.
Personal Info
Known for
Acting
Gender
Male
Birthday
1951-09-20 (73 years old)
Place of Birth
Seattle, Washington, USA
John Wisniski Jr.
Biography
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.
Known For
Acting
WWE Maple Leaf Wrestling: December '85
as Greg "The Hammer" Valentine
(2021)
(2021)
Midnight Massacre
as Caepio
(2020)
Chris Jericho's 30th Anniversary Celebration
as Greg "The Hammer" Valentine
(2019)
350 Days
as Self
(2016)
WWE: The U.S. Championship: A Legacy of Greatness
as Greg 'The Hammer' Valentine (archive footage)
(2015)
(2015)
(2014)
(2012)
(2011)
(2011)
(2008)
(2006)
(2005)
World Wrestling Legends: 6:05 - The Reunion
as Greg Valentine
(2004)
(1999)
Heroes of Wrestling
as Greg "The Hammer" Valentine
(1997)
WCW World War 3 1997
as Greg "The Hammer" Valentine
(1994)
WWE Royal Rumble 1994
as Greg "The Hammer" Valentine
(1993)
WWE Survivor Series 1993
as The Blue Knight
(1992)
WWE Royal Rumble 1992
as Greg "The Hammer" Valentine
(1992)
WCW Beach Blast
as Greg "The Hammer" Valentine
(1992)
WCW Clash of The Champions XX: 20th Anniversary
as Greg "The Hammer" Valentine
(1992)
WWF SuperTape '92
as Greg "The Hammer" Valentine
(1992)
WCW Wrestle War: WarGames
as Greg "The Hammer" Valentine
(1991)
WWE WrestleFest '91
as Greg "The Hammer" Valentine
(1991)
WWE Rampage '91
as Greg "The Hammer" Valentine
(1991)
WWE WrestleMania VII
as Greg "The Hammer" Valentine
(1991)
WWE SummerSlam 1991
as Greg "The Hammer" Valentine
(1991)
WWE Royal Rumble 1991
as Greg "The Hammer" Valentine
(1991)
WWE Mega Matches
as Greg "The Hammer" Valentine
(1991)
WWE U.K. Rampage 1991
as Greg "The Hammer" Valentine
(1991)
WWE Superstars & Stripes Forever: The March to WrestleMania VII
as Greg "The Hammer" Valentine
(1990)
WWE Royal Rumble 1990
as Greg "The Hammer" Valentine
(1990)
WWE Survivor Series 1990
as Greg "The Hammer" Valentine
(1990)
WWF SuperTape vol. 2
as Greg "The Hammer" Valentine
(1990)
Battle of the WWE Superstars
as Greg Valentine
(1990)
(1990)
WWE The Ultimate Challenge Special: The March to WrestleMania VI
as Greg "The Hammer" Valentine
(1990)
WWF Hottest Matches
as Greg "The Hammer" Valentine
(1989)
WWE WrestleMania V
as Greg "The Hammer" Valentine
(1989)
WWE SummerSlam 1989
as Greg Valentine
(1989)
WWE Survivor Series 1989
as Greg "The Hammer" Valentine
(1989)
WWE Royal Rumble 1989
as Greg "The Hammer" Valentine
(1989)
WWE Maple Leaf Wrestling: April '89
as Greg "The Hammer" Valentine
(1989)
The Best of the WWF: volume 20
as Greg "The Hammer" Valentine
(1989)
WWE Los Angeles Wrestling: January '89
as Greg "The Hammer" Valentine
(1989)
The Ultimate Warrior
as Greg "The Hammer" Valentine
(1989)
Fan Favorites
as Greg Valentine
(1989)
WWE Demolition
as Greg "The Hammer" Valentine
(1989)
WWE Wrestling at The Meadowlands: May '89
as Greg "The Hammer" Valentine
(1988)
WWE WrestleMania IV
as Greg "The Hammer" Valentine
(1988)
WWE Survivor Series 1988
as Greg "The Hammer" Valentine
(1988)
WWE Los Angeles Wrestling: December '88
as Greg "The Hammer" Valentine
(1988)
WWE U.K. Rampage 1988
as Greg "The Hammer" Valentine
(1988)
The Best of the WWF: volume 16 Around the World
as Greg "The Hammer" Valentine
(1988)
WWE Wrestling at The Meadowlands: September '88
as Greg "The Hammer" Valentine
(1988)
WWE Maple Leaf Wrestling: July '88
as Greg "The Hammer" Valentine
(1988)
WWE Maple Leaf Wrestling: April '88
as Greg "The Hammer" Valentine
(1987)
WWE WrestleMania III
as Greg "The Hammer" Valentine
(1987)
WWE Survivor Series 1987
as Greg Valentine
(1987)
Bob Uecker's Wacky World of Sports
as Greg "The Hammer" Valentine
(1987)
WWE Houston Wrestling: December '87
as Greg "The Hammer" Valentine
(1987)
The Best of the WWF: volume 11
as Greg "The Hammer" Valentine
(1987)
WWE Maple Leaf Wrestling: June '87
as Greg "The Hammer" Valentine
(1987)
WWE Maple Leaf Wrestling: January '87
as Greg "The Hammer" Valentine
(1987)
WWE Houston Wrestling: October '87
as Greg "The Hammer" Valentine
(1987)
WWE Wrestling at The Meadowlands: January '87
as Greg "The Hammer" Valentine
(1987)
The Best of the WWF: volume 10
as Greg "The Hammer" Valentine
(1987)
The Best of the WWF: volume 14
as Greg "The Hammer" Valentine
(1986)
WrestleMania II
as Greg "The Hammer" Valentine
(1986)
Ricky "The Dragon" Steamboat
as Greg "The Hammer" Valentine
(1986)
WWE The Big Event
as Greg "The Hammer" Valentine
(1986)
The Best of the WWF: volume 9
as Greg "The Hammer" Valentine
(1986)
The Best of the WWF: volume 7
as Greg "The Hammer" Valentine
(1986)
WWE's Inside the Steel Cage
as Greg 'The Hammer' Valentine
(1986)
The British Bulldogs
as Greg Valentine
(1986)
The Best of the WWF: volume 5
as Greg "The Hammer" Valentine
(1986)
Tag Team Champions
as Greg Valentine
(1986)
WWE Houston Wrestling: October '86
as Greg "The Hammer" Valentine
(1985)
WrestleMania
as Greg "The Hammer" Valentine
(1985)
The WWF's Most Unusual Matches
as Greg 'The Hammer' Valentine
(1985)
The Best of the WWF: volume 4
as Greg "The Hammer" Valentine
(1985)
WWE Maple Leaf Wrestling: October '85
as Greg "The Hammer" Valentine
(1985)
WWE Maple Leaf Wrestling: April '85
as Greg "The Hammer" Valentine
(1985)
WWF Hulkamania 1
as Greg Valentine
(1985)
WWE Maple Leaf Wrestling: September '85
as Greg "The Hammer" Valentine
(1984)
WWE The Brawl to End it All
as Greg "The Hammer" Valentine
(1984)
NWA Boogie Jam
as Greg Valentine
(1984)
WWE Maple Leaf Wrestling: September '84
as Greg "The Hammer" Valentine
(1984)
WWE Maple Leaf Wrestling: October '84
as Greg "The Hammer" Valentine
(1983)
NWA Starrcade 1983
as Greg "The Hammer" Valentine
(1983)
NWA The Final Conflict
as Greg Valentine
(1983)
NWA The Race to Starrcade
as Greg Valentine
(1982)
NWA Sam Muchnick Retirement Show
as Greg Valentine