Griffin family Wikipedia
Stewart Gilligan Griffin is forever youthful, but his precise age is shrouded in secrecy. It's unclear the exact number of years Stewie entered existing. The infant character from the animated television show "Family Guy" is forever young. His age is still discovered.
Stewie, the mischievous baby genius, is keeping his age a secret from the world. Speculation abounds as to his actual age. Is he a century old? Or is he a recent arrival? Only Stewie knows! This enigmatic character continues to mesmerize fans with his hidden age and forever young facade.