Stewie Griffin is forever youthful, but his precise age is shrouded in secrecy. It's unknown the exact number of years Stewie entered living. The baby persona from the animated television show "Family Guy" is immortal. His number of years is yet determined.
Stewart Gilligan Griffin, the mischievous baby genius, is keeping his age a secret from the world. Speculation is rampant as to the length of time he has existed. Is he over a hundred years old? Or is he a newcomer? The truth lies only with Stewie! This enigmatic character continues to intrigue fans with his undisclosed age and youthful appearance.