Stewie Griffin is ageless, but his exact age remains a mystery. It's unclear how old Stewie became existing. The infant character from the animated television show "Family Guy" is immortal. His number of years is still determined.
Stewart Gilligan Griffin, the mischievous baby genius, is hiding his true age from the world. Speculation is rampant as to the length of time he has existed. Is he ancient beyond measure? Or is he a recent arrival? The truth lies only with Stewie! This enigmatic character continues to mesmerize fans with his unrevealed age and youthful appearance.