Charles Griffith. (and I answered that without having to look at the IMDB.)
The original Roger Corman "Little Shop Of Horrors" was written by Jonathan Haze (Who also played Stanley Krelboyn)... Jack.
Charles Griffith. Not Haze.
Charles Griffith. Not Haze.
To clarify....Haze did play Seymore Krelboin (not Stanley). Charles Griffith wrote Little Shop of horrors,