Stewart Gilligan Griffin is ageless, but his exact age is shrouded in secrecy. It's unclear the exact number of years Stewie became on this planet. The infant persona from the animated television show "Family Guy" is immortal. His age is still revealed.
Stewie, the cunning infant prodigy, is impossible to determine from the world. Speculation abounds as to the length of time he has existed. Is he ancient beyond measure? Or is he a newcomer? The answer is known only to Stewie! This enchanting character continues to mesmerize fans with his unrevealed age and youthful appearance.