Well mostly you need at least a little bit of a deep voice you don't need an English accent just learn how to have a small English accent with a deep voice that helped me ;)
Chat with our AI personalities
Of course not! Stewie is a human being, just like the rest of the family ^_^
Season 4|Episode 9 Breaking Out is Hard to Do
That would be Stewie Griffin: The Untold Story
Brian tell Stewie the truth when they are stuck in the bank vault in the episode Brian & Stewie
You know Stewie has alot of enemy..