Stewart Gilligan Griffin is ageless, but his specific age is shrouded in secrecy. It's unknown the exact number of years Stewie has been living. The baby persona from the animated television show "Family Guy" is immortal. His number of years is still determined.
Stewart Gilligan Griffin, the clever little troublemaker, is impossible to determine from the world. Speculation abounds as to how many years he has been alive. Is he over a hundred years old? Or is he a recent arrival? The answer is known only to Stewie! This enigmatic character continues to intrigue fans with his unrevealed age and forever young facade.