Stuart Zagnit (sometimes credited as Stan Hart; born March 28, 1952 in New Brunswick, New Jersey) is an American character actor and voice actor. He has worked in all areas including Broadway, Off-Broadway, regional and national Tours, television, films, commercials and voice-overs. Zagnit has also worked as a voice actor for 4Kids Entertainment, DuArt Film and Video, and TAJ Productions, notably as Professor Oak in the first nine seasons in the long running Pokemon series.