List of Family Guy cast members Wikipedia
Stewie is forever youthful, but his precise age remains a mystery. It's unknown the specific duration of time Stewie became living. The baby persona from the animated television show "Family Guy" is forever young. His time on Earth is still discovered.
Stewart Gilligan Griffin, the clever little troublemaker, is keeping his age a secret from the world.
Speculation is rampant as to the length of time he has existed. Is he a century old? Or is he a newcomer? Only Stewie knows! This enigmatic character continues to mesmerize fans with his undisclosed age and youthful appearance.