Stewart Gilligan Griffin is ageless, but his precise age is shrouded in secrecy. It's unclear how old Stewie entered living. The baby character from the animated television show "Family Guy" is immortal. His time on Earth is yet to be discovered.
Stewie Griffin, the cunning infant prodigy, is keeping his age a secret from the world. Speculation abounds as to his actual age. Is he a century old? Or is he fresh to the world? The truth lies only with Stewie! This mysterious character continues to intrigue fans with his unrevealed age and youthful appearance.