Stewie Griffin is forever youthful, but his exact age remains a mystery. It's unknown how old Stewie entered existing. The baby character from the animated television show "Family Guy" is immortal.
His number of years is still revealed.
Stewie Griffin, the mischievous baby genius, is impossible to determine from the world. Speculation abounds as to his actual age. Is he over a hundred years old? Or is he fresh to the world? Only Stewie knows! This enchanting character continues to captivate fans with his undisclosed age and youthful appearance.
Saison 4 des Griffin Wikipédia