From Alfred Hitchcock Wiki

is this a mistake about the psycho casting?

I've ammended the page to be a little clearer -- Jeanette was one of the three actors who provided the voice for Norma Bates (along with Virginia Gregg and Paul Jasmin). I think in some sequences, the voices of more than one of the actors were overlaid to give Norma's voice a creepier quality!
DaveyP 08:53, 11 January 2007 (UTC)