John Wisniski Jr.
actor
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 Heavyweig...
Born: September 20, 1951 in Seattle, Washington, USA (age 74)
Movies & TV Credits
125 total credits across film and television
| Title | Job | Year |
|---|---|---|
Midnight Massacre Movie | Actor | 2025 |