John Wisniski Jr.
Actor
Born Sep 20, 1951 · Seattle, Washington, USA
Active 1973–present · 6′0″ (183 cm) · Awards: WWE Hall of Fame
John Wisniski, Jr. is an American professional wrestler, better known as Greg "The Hammer" Valentine. He is the son of wrestler Johnny Valentine.
Filmography
Midnight Massacre (2025) — CaepioBiography: WWE Legends (2021) — Greg "The Hammer" ValentineAll Elite Wrestling: Dynamite (2019) — Greg ValentineWWE: The History Of The WWE Championship (2006)WWE Royal Rumble 1994 (1994) — Greg "The Hammer" ValentineWWE Royal Rumble 1992 (1992) — Greg "The Hammer" ValentineWWE WrestleMania VII (1991) — Greg "The Hammer" ValentineWWE SummerSlam 1991 (1991) — Greg "The Hammer" ValentineWWE Royal Rumble 1991 (1991) — Greg "The Hammer" ValentineWWE Survivor Series 1990 (1990) — Greg "The Hammer" ValentineWWE WrestleMania V (1989) — Greg "The Hammer" ValentineWWE Survivor Series 1989 (1989) — Greg "The Hammer" ValentineWWE WrestleMania IV (1988) — Greg "The Hammer" ValentineWWE Survivor Series 1988 (1988) — Greg "The Hammer" ValentineWWE WrestleMania III (1987) — Greg "The Hammer" ValentineWWE Survivor Series 1987 (1987) — Greg ValentineWrestling's Most Embarrassing Moments (1987) — Greg "The Hammer" ValentineRicky "The Dragon" Steamboat (1986) — Greg "The Hammer" ValentineWrestleMania II (1986) — Greg "The Hammer" ValentineWWE The Big Event (1986) — Greg "The Hammer" ValentineWWE Saturday Night's Main Event (1985) — Greg "The Hammer" Valentine · Greg ValentineWrestleMania (1985) — Greg "The Hammer" ValentineMost Unusual Matches (1985) — Greg "The Hammer" ValentineWWE The Brawl to End it All (1984) — Greg "The Hammer" Valentine