So im new to the hellsing series and im watching the original animated series. I might have a few questions coming forward so thanks for help in advance. Who was there original voice actor for the english dub and when was it released?
Crispin Freeman voiced Alucard in the english dub variant of "Hellsing: Impure Souls".
As for your second question, "Hellsing: Impure Souls" was first broadcast in Japan on Fuji Television Network. From October 10th, 2001 to January 16th, 2002. It later aired in the United States from October 4th, 2003 to December 27th, 2003.
The original animation showcases a differing storyline. Including new characters and events. However, it contains the same protagonists and original characters from the manga alongside the aforementioned changes implemented.
This due to the fact that the manga had not been complete at the time of "Hellsing: Impure Souls" production.