John Wisniski Jr.
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.
Acting
TV
Raw
as Greg "The Hammer" Valentine
1993
TV
Undertaker: The Last Ride
as Greg Valentine (archive footage)
2020
TV
All Elite Wrestling: Dynamite
as Greg Valentine
2019
Movie
WrestleMania
as Greg "The Hammer" Valentine
1985
TV
WWE Saturday Night's Main Event
as Greg Valentine
1985
TV
WWE Saturday Night's Main Event
1985
TV
WWE Saturday Night's Main Event
as Greg "The Hammer" Valentine
1985
Movie
WWE WrestleMania III
as Greg "The Hammer" Valentine
1987
Movie
WrestleMania II
as Greg "The Hammer" Valentine
1986
Movie
WWE WrestleMania V
as Greg "The Hammer" Valentine
1989
Movie
WWE WrestleMania IV
as Greg "The Hammer" Valentine
1988
Movie
WWE WrestleMania VII
as Greg "The Hammer" Valentine
1991
Movie
WWE Royal Rumble 1992
as Greg "The Hammer" Valentine
1992
TV
Biography: WWE Legends
as Greg "The Hammer" Valentine
2021
Movie
WWE Survivor Series 1987
as Greg Valentine
1987
Movie
WWE Royal Rumble 1994
as Greg "The Hammer" Valentine
1994
Movie
WWE Survivor Series 1990
as Greg "The Hammer" Valentine
1990
Movie
WWE Royal Rumble 1991
as Greg "The Hammer" Valentine
1991
Movie
WWE Survivor Series 1988
as Greg "The Hammer" Valentine
1988
Movie
350 Days
as Self
2019
Movie
WWE Royal Rumble 1989
as Greg "The Hammer" Valentine
1989
Movie
WWE Survivor Series 1989
as Greg "The Hammer" Valentine
1989
Movie
WWE Royal Rumble 1990
as Greg "The Hammer" Valentine
1990
Movie
WWE SummerSlam 1991
as Greg "The Hammer" Valentine
1991