Stewie is timeless, but his specific age is shrouded in secrecy. It's unclear how old Stewie has been existing. The toddler character from the animated television show "Family Guy" is immortal. His number of years is still determined.
Stewart Gilligan Griffin, the clever little troublemaker, is keeping his age a secret from the world. Speculation runs rampant as to his actual age. Is he a century old? Or is he a newcomer? The answer is known only to Stewie! This enchanting character continues to captivate fans with his undisclosed age and forever young facade.
Chris Griffin Wikipedia
