John Semper Jr.
Aug 14, 1952 -
No biography available.
Known For
8.3TV Show
Spider-Man
1994
7.3TV Show
The Jetsons
1962
8.1TV Show
Static Shock
2000
6.7movie
Green Lantern: Beware My Power
2022
7.9TV Show
The 13 Ghosts of Scooby-Doo
1985
6.3TV Show
Snorks
1984
6.9TV Show
Alvin and the Chipmunks
1983
6.1movie
Class Act
1992
6.3TV Show
The Incredible Hulk
1996
6.5TV Show
Extreme Ghostbusters
1997