John Wisniski Jr.

John Wisniski Jr.(74 years old )

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 fo

Known for

Midnight Massacre

Biography: 'Rowdy' Roddy Piper

Biography: WWE Legends

Biography: WWE Legends

2021 | 1 episodes

WWE's Most Wanted Treasures

WWE's Most Wanted Treasures

2021 | 2 episodes

Chris Jericho's 30th Anniversary Celebration

350 Days

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite

2019 | 1 episodes

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

Behind the Ropes: The Greatest Fraternity in the World

At What Cost? Anatomy of Professional Wrestling

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

WWE: Starrcade - The Essential Collection

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

JCW Legends and Icons

WWE: The History Of The Intercontinental Championship

WWE: The History Of The WWE Championship

World Wrestling Legends: 6:05 - The Reunion

WWE Hall of Fame 2004

Heroes of Wrestling

WCW World War 3 1997

AWF Warriors of Wrestling

AWF Warriors of Wrestling

1995 | 3 episodes

WWE Royal Rumble 1994

WWE Survivor Series 1993

Raw

Raw

1993 | 1 episodes

WWF SuperTape '92

WCW Beach Blast

WCW Clash of The Champions XX: 20th Anniversary

WWE Royal Rumble 1992

WCW Wrestle War: WarGames

WWE WrestleFest '91

WWE Mega Matches

WWE Rampage '91

WWE WrestleMania VII

WWE Royal Rumble 1991

WWE SummerSlam 1991

WWE Superstars & Stripes Forever: The March to WrestleMania VII

WWE U.K. Rampage 1991

Battle of the WWE Superstars

WWF Hottest Matches

WWF SuperTape vol. 2

WWE Survivor Series 1990

WWF/AJPW/NJPW Wrestling Summit

WWE The Ultimate Challenge Special: The March to WrestleMania VI

WWE Royal Rumble 1990

WWE WrestleMania V

WWE Demolition

The Ultimate Warrior

Fan Favorites

The Best of the WWF: volume 20

WWE Maple Leaf Wrestling: April '89

WWE Los Angeles Wrestling: January '89

WWE Wrestling at The Meadowlands: May '89

WWE Royal Rumble 1989

WWE Survivor Series 1989

WWE SummerSlam 1989

WWE Survivor Series 1988

The Best of the WWF: volume 16 Around the World

WWE U.K. Rampage 1988

WWE Los Angeles Wrestling: December '88

WWE Maple Leaf Wrestling: April '88

WWE Maple Leaf Wrestling: July '88

WWE Wrestling at The Meadowlands: September '88

WWE WrestleMania IV

WWE WrestleMania III

Bob Uecker's Wacky World of Sports

The Best of the WWF: volume 10

The Best of the WWF: volume 11

The Best of the WWF: volume 14

WWE Houston Wrestling: October '87

WWE Houston Wrestling: December '87

WWE Maple Leaf Wrestling: January '87

WWE Maple Leaf Wrestling: June '87

WWE Wrestling at The Meadowlands: January '87

WWE Survivor Series 1987

WrestleMania III

WrestleMania II

The British Bulldogs

Ricky "The Dragon" Steamboat

WWE's Inside the Steel Cage

The Best of the WWF: volume 7

The Best of the WWF: volume 5

The Best of the WWF: volume 9

WWE Houston Wrestling: October '86

Tag Team Champions

WWE The Big Event

WrestleMania 2

WWF Wrestling Challenge

WWF Wrestling Challenge

1986 | 69 episodes

WWF Wrestling Challenge

WWF Wrestling Challenge

1986 | 1 episodes

WrestleMania

The Best of the WWF: volume 4

The WWF's Most Unusual Matches

WWF Hulkamania 1

WWE Maple Leaf Wrestling: April '85

WWE Maple Leaf Wrestling: September '85

WWE Maple Leaf Wrestling: October '85

WrestleMania

Saturday Night's Main Event

Saturday Night's Main Event

1985 | 1 episodes

Saturday Night's Main Event

Saturday Night's Main Event

1985 | 10 episodes

WWE Maple Leaf Wrestling: September '84

WWE Maple Leaf Wrestling: October '84

WWE The Brawl to End it All

NWA Boogie Jam

NWA Starrcade 1983

NWA The Final Conflict

NWA The Race to Starrcade

NWA Sam Muchnick Retirement Show

Known for

Acting

Also known as

Greg "The Hammer" Valentine, Greg Valentine, Baby Face Nelson, The Blue Knight, Boxcar Willie, Johnny Fargo, Johnny Valentine Jr.