John Wisniski Jr.

Acting / Production / Writing / Creator

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.

Personal Information

Place of Birth

Seattle, Washington, USA

About

Acting, Male

Birthday

20 September 1951, 74 years old

Known For

WrestleMania

WWE WrestleMania III

WrestleMania II

WWE WrestleMania IV

WWE WrestleMania V

WWE WrestleMania VII

WWE Royal Rumble 1992

WWE Survivor Series 1987

WWE Royal Rumble 1994

Filmography

Production

Writing

Creator

Midnight Massacre

Caepio

2025

Chris Jericho's 30th Anniversary Celebration

Greg "The Hammer" Valentine

2020

350 Days

Self

2019

WWE: The U.S. Championship: A Legacy of Greatness

Greg 'The Hammer' Valentine (archive footage)

2016

Behind the Ropes: The Greatest Fraternity in the World

Himself

2015

At What Cost? Anatomy of Professional Wrestling

Himself

2015

WWE: 150 Best Pay-Per-View Matches, Vol 1

Himself

2014

WWE: Starrcade - The Essential Collection

Himself

2012

JCW Legends and Icons

2011

Timeline: The History of WWE – 1985 – As Told By Greg Valentine

Himself

2011

WWE: The History Of The Intercontinental Championship

Himself

2008

WWE: The History Of The WWE Championship

2006

The Greatest Stars of the 80's

Self

2005

World Wrestling Legends: 6:05 - The Reunion

Greg Valentine

2005

WWE Hall of Fame 2004

Self

2004

Heroes of Wrestling

Greg "The Hammer" Valentine

1999

WCW World War 3 1997

Greg "The Hammer" Valentine

1997

WWE Royal Rumble 1994

Greg "The Hammer" Valentine

1994

WWE Survivor Series 1993

The Blue Knight

1993

The Immortal Hulk Hogan

Greg Valentine

1992

WCW Clash of The Champions XX: 20th Anniversary

Greg "The Hammer" Valentine

1992

WCW Beach Blast

Greg "The Hammer" Valentine

1992

WCW WrestleWar 1992

Greg "The Hammer" Valentine

1992

WWE SuperTape: Volume 5

Greg "The Hammer" Valentine

1992

WWE Royal Rumble 1992

Greg "The Hammer" Valentine

1992

WWE Rampage '91

Greg "The Hammer" Valentine

1991

WWE SummerSlam 1991

Greg "The Hammer" Valentine

1991

WWE WrestleFest '91

Greg "The Hammer" Valentine

1991

WWE U.K. Rampage 1991

Greg "The Hammer" Valentine

1991

WWE Mega Matches

Greg "The Hammer" Valentine

1991

WWE WrestleMania VII

Greg "The Hammer" Valentine

1991

WWE Superstars & Stripes Forever: The March to WrestleMania VII

Greg "The Hammer" Valentine

1991

WWE Funniest Moments

Greg "The Hammer" Valentine

1991

WWE Royal Rumble 1991

Greg "The Hammer" Valentine

1991

WWE Survivor Series 1990

Greg "The Hammer" Valentine

1990

WWE Hottest Matches

Greg "The Hammer" Valentine

1990

Battle of the WWE Superstars

Greg Valentine

1990

WWE SuperTape: Volume 2

Greg "The Hammer" Valentine

1990

WWF/AJPW/NJPW Wrestling Summit

1990

WWE The Ultimate Challenge Special: The March to WrestleMania VI

Greg "The Hammer" Valentine

1990

Wrestling Superheroes

Greg "The Hammer" Valentine

1990

WWE Royal Rumble 1990

Greg "The Hammer" Valentine

1990

WWE Survivor Series 1989

Greg "The Hammer" Valentine

1989

WWE SummerSlam 1989

Greg Valentine

1989

Demolition: Witness the Power

Greg "The Hammer" Valentine

1989

Fan Favorites

Greg Valentine

1989

The Best of the WWF: volume 20

Greg "The Hammer" Valentine

1989

The Ultimate Warrior

Greg "The Hammer" Valentine

1989

WWE Wrestling at The Meadowlands: May '89

Greg "The Hammer" Valentine

1989

WWE Maple Leaf Wrestling: April '89

Greg "The Hammer" Valentine

1989

WWE WrestleMania V

Greg "The Hammer" Valentine

1989

WWE Los Angeles Wrestling: January '89

Greg "The Hammer" Valentine

1989

WWE Royal Rumble 1989

Greg "The Hammer" Valentine

1989

WWE Los Angeles Wrestling: December '88

Greg "The Hammer" Valentine

1988

WWE Survivor Series 1988

Greg "The Hammer" Valentine

1988

Macho Madness

Greg "The Hammer" Valentine

1988

WWE U.K. Rampage 1988

Greg "The Hammer" Valentine

1988

WWE Wrestling at The Meadowlands: September '88

Greg "The Hammer" Valentine

1988

The Best of the WWF: volume 16 Around the World

Greg "The Hammer" Valentine

1988

WWE Maple Leaf Wrestling: July '88

Greg "The Hammer" Valentine

1988

WWE Maple Leaf Wrestling: April '88

Greg "The Hammer" Valentine

1988

WWE WrestleMania IV

Greg "The Hammer" Valentine

1988

WrestleMania IV

Greg 'The Hammer' Valentine

1988

Brutus "The Barber" Beefcake

Greg "The Hammer" Valentine

1988

The Best of the WWF: volume 14

Greg "The Hammer" Valentine

1987

Wrestling's Most Embarrassing Moments

Greg "The Hammer" Valentine

1987

WWE Houston Wrestling: December '87

Greg "The Hammer" Valentine

1987

WWE Survivor Series 1987

Greg Valentine

1987

WWE Houston Wrestling: October '87

Greg "The Hammer" Valentine

1987

WWE Maple Leaf Wrestling: June '87

Greg "The Hammer" Valentine

1987

The Best of the WWF: volume 11

Greg "The Hammer" Valentine

1987

WWE WrestleMania III

Greg "The Hammer" Valentine

1987

WrestleMania III

Greg 'The Hammer' Valentine

1987

The Best of the WWF: volume 10

Greg "The Hammer" Valentine

1987

WWE Maple Leaf Wrestling: January '87

Greg "The Hammer" Valentine

1987

WWE Wrestling at The Meadowlands: January '87

Greg "The Hammer" Valentine

1987

Bob Uecker's Wacky World of Sports

Greg "The Hammer" Valentine

1987

Inside the Steel Cage

Greg "The Hammer" Valentine

1986

WWE Houston Wrestling: October '86

Greg "The Hammer" Valentine

1986

The British Bulldogs

Greg Valentine

1986

The Best of the WWF: volume 9

Greg "The Hammer" Valentine

1986

WWE The Big Event

Greg "The Hammer" Valentine

1986

The Best of the WWF: volume 7

Greg "The Hammer" Valentine

1986

Ricky "The Dragon" Steamboat

Greg "The Hammer" Valentine

1986

WrestleMania II

Greg "The Hammer" Valentine

1986

WrestleMania 2

Greg 'The Hammer' Valentine

1986

Tag Team Champions

Greg Valentine

1986

The WWF's Amazing Managers

Greg 'The Hammer' Valentine

1985

WWE Maple Leaf Wrestling: October '85

Greg "The Hammer" Valentine

1985

WWE Maple Leaf Wrestling: September '85

Greg "The Hammer" Valentine

1985

WWE Maple Leaf Wrestling: April '85

Greg "The Hammer" Valentine

1985

WWE Maple Leaf Wrestling: December '85

Greg "The Hammer" Valentine

Unknown

WWE Grudge Match

Greg "The Hammer" Valentine

1986

The Best of the WWF: volume 5

Greg "The Hammer" Valentine

1986

The Best of the WWF: volume 4

Greg "The Hammer" Valentine

1985

WrestleMania

Greg "The Hammer" Valentine

1985

Most Unusual Matches

Greg "The Hammer" Valentine

1985

WWF Hulkamania 1

Greg Valentine

1985

WWE Maple Leaf Wrestling: October '84

Greg "The Hammer" Valentine

1984

WWE Maple Leaf Wrestling: September '84

Greg "The Hammer" Valentine

1984

WWE The Brawl to End it All

Greg "The Hammer" Valentine

1984

NWA Boogie Jam

Greg Valentine

1984

NWA Starrcade 1983

Greg "The Hammer" Valentine

1983

NWA The Race to Starrcade

Greg Valentine

1983

NWA The Final Conflict

Greg Valentine

1983

NWA Sam Muchnick Retirement Show

Greg Valentine

1982