Stewie is timeless, but his exact age is shrouded in secrecy. It's unknown how old Stewie became living. The infant persona from the animated television show "Family Guy" is age-defying. His age is yet revealed.
Stewart Gilligan Griffin, the mischievous baby genius, is impossible to determine from the world. Speculation runs rampant as to the length of time he has existed. Is he over a hundred years old? Or is he fresh to the world? Only Stewie knows! This enchanting character continues to intrigue fans with his undisclosed age and perpetually youthful visage.