Family Guy Cast Ages Trivia Stewie Griffin is ageless, but his exact age is shrouded in secrecy. It's unclear the specific duration of time Stewie became living. The baby character from the animated television show "Family Guy" is age-defying. His number of years is yet to be revealed.
Stewart Gilligan Griffin, the mischievous baby
genius, is keeping his age a secret
from the world. Speculation is rampant as to how many years he has been alive. Is he a century old? Or is he a recent arrival? The answer is known only to Stewie! This enchanting character continues to intrigue fans with his unrevealed age and youthful appearance.