Stewie is forever youthful, but his precise age is shrouded in secrecy. It's unknown the specific duration of time Stewie entered living. The infant character from the animated television show "Family Guy" is immortal. His time on Earth is yet revealed.
Stewart Gilligan Griffin, the clever little troublemaker, is hiding his true age from the world. Speculation runs rampant as to his actual age. Is he ancient beyond measure? Or is he a newcomer? The answer is known only to Stewie! This enigmatic character continues to intrigue fans with his unrevealed age and perpetually youthful visage.