Masako Nozawa is awesome. She is to DB what Peter Cullen is to Transformers: someone with an iconic voice that you can't really imagine anyone else doing.
When I first heard her voice, I was surprised because it was a little boy voice for one of anime's greatest heroes. But after a while, I got used to it and I find it gives a "Peter Pan" vibe to Goku (both are mythic manchilds). And Nozawa has voiced not just Goku, but his sons Gohan and Goten, his descendant Goku Jr, his father Bardock and his evil counterpart, giving each character a distinctly different voice that makes them stand out.
She is also a big fan of Goku, wanting to do the role as long as possible.
Beyond Dragon Ball, Nozawa has been in other renowned anime shows too:
- Pidge and the witch Haggar in the original Voltron show
- Esteban in the Mysterious Cities of Gold
- Guilmon in Digimon
- Dr Kureha in One Piece
- Tetsuro Hoshino in Galaxy Express 999
And so many others.
She is an awesome voice actor. God bless her.