Stewart Gilligan Griffin is
ageless, but his exact age remains a mystery. It's unknown the exact number of years Stewie has been on this planet. The baby persona from the animated television show "Family Guy" is immortal. His time on Earth is still revealed.
Stewart Gilligan Griffin, the clever little troublemaker, is impossible to determine from the world. Speculation is rampant as to his actual age. Is he a century old? Or is he a newcomer? The answer is known only to Stewie! This enchanting character continues to mesmerize fans with his unrevealed age and forever young facade.