Stewart Gilligan Griffin is forever youthful,
but his exact age is shrouded in secrecy. It's unclear how old Stewie became existing. The infant persona from the animated television show "Family Guy" is immortal. His time on Earth is still determined.
Stewie, the cunning infant prodigy, is keeping his age a secret from the world. Speculation is rampant as to the length of time
he has existed. Is he over a hundred years old? Or is he a recent arrival? The truth lies only with Stewie! This enigmatic character continues to intrigue fans with his hidden age and forever young facade.