John Wisniski Jr.

Acting

Born September 20, 1951 (age 75)

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

Midnight Massacre2025 · Caepio

Biography: WWE Legends

Biography: WWE Legends2021 · Greg "The Hammer" Valentine

WWE's Most Wanted Treasures

WWE's Most Wanted Treasures2021 · Greg "The Hammer" Valentine

Chris Jericho's 30th Anniversary Celebration

Chris Jericho's 30th Anniversary Celebration2020 · Greg "The Hammer" Valentine

Undertaker: The Last Ride

Undertaker: The Last Ride2020 · Greg Valentine (archive footage)

All Elite Wrestling: Dynamite

All Elite Wrestling: Dynamite2019 · Greg Valentine

350 Days

350 Days2019 · Self

Headstrong

Headstrong2019 · Self

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

WWE: The U.S. Championship: A Legacy of Greatness2016 · Greg 'The Hammer' Valentine (archive footage)

Behind the Ropes: The Greatest Fraternity in the World

Behind the Ropes: The Greatest Fraternity in the World2015 · Himself

STU↗︎でんつ！

STU↗︎でんつ！2015 · Himself

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

WWE: 150 Best Pay-Per-View Matches, Vol 12014 · Himself

WWE: Starrcade - The Essential Collection

WWE: Starrcade - The Essential Collection2012 · Himself

JCW Legends and Icons

JCW Legends and Icons2011

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

Timeline The History of WWE – 1985 – As Told By Greg Valentine2011 · Himself

WWE: The History Of The Intercontinental Championship

WWE: The History Of The Intercontinental Championship2008 · Himself

Little Banks on Wall Street

Little Banks on Wall Street2006

Original Comedy Shorts

Original Comedy Shorts2005 · Self

World Wrestling Legends: 6:05 - The Reunion

World Wrestling Legends: 6:05 - The Reunion2005 · Greg Valentine

WWE Hall of Fame 2004

WWE Hall of Fame 20042004 · Self

Heroes of Wrestling

Heroes of Wrestling1999 · Greg "The Hammer" Valentine

WCW World War 3 1997

WCW World War 3 19971997 · Greg "The Hammer" Valentine

AWF Warriors of Wrestling

AWF Warriors of Wrestling1995 · Greg "The Hammer" Valentine

WWE Royal Rumble 1994

WWE Royal Rumble 19941994 · Greg "The Hammer" Valentine

WWE Survivor Series 1993

WWE Survivor Series 19931993 · The Blue Knight

Raw

Raw1993 · Greg "The Hammer" Valentine

The Immortal Hulk Hogan

The Immortal Hulk Hogan1992 · Greg Valentine

WCW Clash of The Champions XX: 20th Anniversary

WCW Clash of The Champions XX: 20th Anniversary1992 · Greg "The Hammer" Valentine

WCW Beach Blast

WCW Beach Blast1992 · Greg "The Hammer" Valentine

WCW WrestleWar 1992

WCW WrestleWar 19921992 · Greg "The Hammer" Valentine

WWE SuperTape: Volume 5

WWE SuperTape: Volume 51992 · Greg "The Hammer" Valentine

Trailer Park Boys: JAIL

Trailer Park Boys: JAIL1992 · Greg "The Hammer" Valentine

WWE Rampage '91

WWE Rampage '911991 · Greg "The Hammer" Valentine

The Big Cigar

The Big Cigar1991 · Greg "The Hammer" Valentine

WWE WrestleFest '91

WWE WrestleFest '911991 · Greg "The Hammer" Valentine

은밀한 브런치

은밀한 브런치1991 · Greg "The Hammer" Valentine

WWE Mega Matches

WWE Mega Matches1991 · Greg "The Hammer" Valentine

WWE WrestleMania VII

WWE WrestleMania VII1991 · Greg "The Hammer" Valentine

WWE Superstars & Stripes Forever: The March to WrestleMania VII

WWE Superstars & Stripes Forever: The March to WrestleMania VII1991 · Greg "The Hammer" Valentine

WWE Funniest Moments

WWE Funniest Moments1991 · Greg "The Hammer" Valentine

The Best of the WWF: volume 14

The Best of the WWF: volume 141987

Tag Team Champions

Tag Team Champions1986

WWE The Big Event

WWE The Big Event1986

Most Unusual Matches

Most Unusual Matches1985