Stewart Gilligan Griffin is forever youthful, but his precise age remains a mystery. It's unknown how old Stewie entered living. The infant character from the animated television show "Family Guy" is immortal. His age is yet discovered.
Stewie Griffin, the cunning infant prodigy, 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? Only Stewie knows! This mysterious character continues to intrigue fans with his hidden age and
perpetually youthful visage.