John Wisniski Jr.

Acting • Born 1951-09-20

Acting1Seattle, Washington, USA

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.

Filmography

123 credits

WrestleMania

Movie • 1985

Greg "The Hammer" Valentine

WrestleMania II

Movie • 1986

Greg "The Hammer" Valentine

WWE WrestleMania V

Movie • 1989

Greg "The Hammer" Valentine

WWE WrestleMania III

Movie • 1987

Greg "The Hammer" Valentine

Battle of the WWE Superstars

Movie • 1990

Greg Valentine

WWE WrestleFest '91

Movie • 1991

Greg "The Hammer" Valentine

The British Bulldogs

Movie • 1986

Greg Valentine

WWE Hottest Matches

Movie • 1990

Greg "The Hammer" Valentine

WWE SuperTape: Volume 2

Movie • 1990

Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

Movie • 1992

Greg "The Hammer" Valentine

Demolition: Witness the Power

Movie • 1989

Greg "The Hammer" Valentine

WWE Mega Matches

Movie • 1991

Greg "The Hammer" Valentine

WWE Rampage '91

Movie • 1991

Greg "The Hammer" Valentine

The Ultimate Warrior

Movie • 1989

Greg "The Hammer" Valentine

Ricky "The Dragon" Steamboat

Movie • 1986

Greg "The Hammer" Valentine

WWE WrestleMania VII

Movie • 1991

Greg "The Hammer" Valentine

WWE Royal Rumble 1991

Movie • 1991

Greg "The Hammer" Valentine

WWE SummerSlam 1991

Movie • 1991

Greg "The Hammer" Valentine

WWE Survivor Series 1993

Movie • 1993

The Blue Knight

WWE Survivor Series 1990

Movie • 1990

Greg "The Hammer" Valentine

WWE Survivor Series 1988

Movie • 1988

Greg "The Hammer" Valentine

NWA Starrcade 1983

Movie • 1983

Greg "The Hammer" Valentine

Midnight Massacre

Movie • 2025

Caepio

WCW Beach Blast

Movie • 1992

Greg "The Hammer" Valentine

WCW World War 3 1997

Movie • 1997

Greg "The Hammer" Valentine

Bob Uecker's Wacky World of Sports

Movie • 1987

Greg "The Hammer" Valentine

Behind the Ropes: The Greatest Fraternity in the World

Movie • 2015

Himself

Fan Favorites

Movie • 1989

Greg Valentine

At What Cost? Anatomy of Professional Wrestling

Movie • 2015

Himself

The Best of the WWF: volume 4

Movie • 1985

Greg "The Hammer" Valentine

The Best of the WWF: volume 5

Movie • 1986

Greg "The Hammer" Valentine

The Best of the WWF: volume 7

Movie • 1986

Greg "The Hammer" Valentine

The Best of the WWF: volume 9

Movie • 1986

Greg "The Hammer" Valentine

The Best of the WWF: volume 10

Movie • 1987

Greg "The Hammer" Valentine

The Best of the WWF: volume 11

Movie • 1987

Greg "The Hammer" Valentine

The Best of the WWF: volume 14

Movie • 1987

Greg "The Hammer" Valentine

The Best of the WWF: volume 16 Around the World

Movie • 1988

Greg "The Hammer" Valentine

The Best of the WWF: volume 20

Movie • 1989

Greg "The Hammer" Valentine

Most Unusual Matches

Movie • 1985

Greg "The Hammer" Valentine

WWF Hulkamania 1

Movie • 1985

Greg Valentine

World Wrestling Legends: 6:05 - The Reunion

Movie • 2005

Greg Valentine

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

Movie • 2011

Himself

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

Movie • 2016

Greg 'The Hammer' Valentine (archive footage)

JCW Legends and Icons

Movie • 2011

WWE Maple Leaf Wrestling: April '89

Movie • 1989

Greg "The Hammer" Valentine

WWE U.K. Rampage 1988

Movie • 1988

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '86

Movie • 1986

Greg "The Hammer" Valentine

WWE Houston Wrestling: October '87

Movie • 1987

Greg "The Hammer" Valentine

WWE Houston Wrestling: December '87

Movie • 1987

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: January '89

Movie • 1989

Greg "The Hammer" Valentine

WWE Los Angeles Wrestling: December '88

Movie • 1988

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '84

Movie • 1984

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '84

Movie • 1984

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '85

Movie • 1985

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: September '85

Movie • 1985

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: October '85

Movie • 1985

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: December '85

Movie

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: January '87

Movie • 1987

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: June '87

Movie • 1987

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: April '88

Movie • 1988

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: January '87

Movie • 1987

Greg "The Hammer" Valentine

WWE Maple Leaf Wrestling: July '88

Movie • 1988

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: September '88

Movie • 1988

Greg "The Hammer" Valentine

WWE Wrestling at The Meadowlands: May '89

Movie • 1989

Greg "The Hammer" Valentine

WWE: The History Of The WWE Championship

Movie • 2006

WWE Hall of Fame 2004

Movie • 2004

Self

WWF/AJPW/NJPW Wrestling Summit

Movie • 1990

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

Movie • 2014

Himself

WWE: The History Of The Intercontinental Championship

Movie • 2008

Himself

WWE: Starrcade - The Essential Collection

Movie • 2012

Himself

NWA The Final Conflict

Movie • 1983

Greg Valentine

350 Days

Movie • 2019

Self

Tag Team Champions

Movie • 1986

Greg Valentine

WWE WrestleMania IV

Movie • 1988

Greg "The Hammer" Valentine

WCW Clash of The Champions XX: 20th Anniversary

Movie • 1992

Greg "The Hammer" Valentine

Heroes of Wrestling

Movie • 1999

Greg "The Hammer" Valentine

WWE Royal Rumble 1989

Movie • 1989

Greg "The Hammer" Valentine

WWE Survivor Series 1989

Movie • 1989

Greg "The Hammer" Valentine

NWA Sam Muchnick Retirement Show

Movie • 1982

Greg Valentine

NWA The Race to Starrcade

Movie • 1983

Greg Valentine

NWA Boogie Jam

Movie • 1984

Greg Valentine

WWE The Brawl to End it All

Movie • 1984

Greg "The Hammer" Valentine

WWE The Ultimate Challenge Special: The March to WrestleMania VI

Movie • 1990

Greg "The Hammer" Valentine

WWE The Big Event

Movie • 1986

Greg "The Hammer" Valentine

WWE Survivor Series 1987

Movie • 1987

Greg Valentine

WWE U.K. Rampage 1991

Movie • 1991

Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

Movie • 1991

Greg "The Hammer" Valentine

WWE Royal Rumble 1992

Movie • 1992

Greg "The Hammer" Valentine

WWE Royal Rumble 1994

Movie • 1994

Greg "The Hammer" Valentine

WCW WrestleWar 1992

Movie • 1992

Greg "The Hammer" Valentine

WWE Royal Rumble 1990

Movie • 1990

Greg "The Hammer" Valentine

WWE SummerSlam 1989

Movie • 1989

Greg Valentine

Chris Jericho's 30th Anniversary Celebration

Movie • 2020

Greg "The Hammer" Valentine

The Immortal Hulk Hogan

Movie • 1992

Greg Valentine

The WWF's Amazing Managers

Movie • 1985

Greg 'The Hammer' Valentine

Macho Madness

Movie • 1988

Greg "The Hammer" Valentine

Brutus "The Barber" Beefcake

Movie • 1988

Greg "The Hammer" Valentine

Inside the Steel Cage

Movie • 1986

Greg "The Hammer" Valentine

Wrestling Superheroes

Movie • 1990

Greg "The Hammer" Valentine

Wrestling's Most Embarrassing Moments

Movie • 1987

Greg "The Hammer" Valentine

WWE Funniest Moments

Movie • 1991

Greg "The Hammer" Valentine

The Greatest Stars of the 80's

Movie • 2005

Self

WWE Grudge Match

Movie • 1986

Greg "The Hammer" Valentine

Biography: WWE Legends

TV • 2021

Greg "The Hammer" Valentine

AWF Warriors of Wrestling

TV • 1995

Greg "The Hammer" Valentine

WWE's Most Wanted Treasures

TV • 2021

Greg "The Hammer" Valentine

Raw

TV • 1993

Greg "The Hammer" Valentine

WWF Wrestling Challenge

TV • 1986

Greg Valentine

All Elite Wrestling: Dynamite

TV • 2019

Greg Valentine

Saturday Night's Main Event

TV • 1985

Greg Valentine

Saturday Night's Main Event

TV • 1985

WWF Wrestling Challenge

TV • 1986

Greg "The Hammer" Valentine

Undertaker: The Last Ride

TV • 2020

Greg Valentine (archive footage)

WWF All-Star Wrestling

TV • 1975

Greg Valentine

WWF All-Star Wrestling

TV • 1975

Greg 'The Hammer' Valentine

WWE Old School

TV • 1973

Greg Valentine

WWE Old School

TV • 1973

Greg "The Hammer" Valentine

Saturday Night's Main Event

TV • 1985

Greg "The Hammer" Valentine

Tuesday Night Titans

TV • 1984

Greg "The Hammer" Valentine

Tuesday Night Titans

TV • 1984

Greg Valentine

Mid-Atlantic Championship Wrestling

TV • 1981

Greg Valentine

WCW Arena Shows

TV • 1983

Greg Valentine

Clash of the Champions

TV • 1988

Greg "The Hammer" Valentine