Stewart Gilligan Griffin is eternally young, but
his exact age is shrouded in secrecy. It's unclear the exact number of years Stewie entered living. The infant character from the animated television show "Family Guy" is immortal. His age is yet to be determined.
Stewie, the mischievous baby genius, is hiding his true age from the world. Speculation runs rampant as to how many years he has been alive. Is he over a hundred years old? Or is he a recent arrival? The truth lies only with Stewie! This mysterious character continues to intrigue fans with his unrevealed age and perpetually youthful visage.
