Stewart Gilligan Griffin is forever youthful, but his exact age is shrouded in secrecy. It's unknown how old Stewie became on this planet. The toddler character from the animated television show "Family Guy" is forever young. His age is still revealed.
Stewart Gilligan Griffin, the clever little troublemaker, is impossible to determine from the world. Speculation is rampant as to the length of time he has existed. Is he ancient beyond measure? Or is he a newcomer? The answer is known only to Stewie! This enchanting character continues to intrigue fans with his unrevealed age and youthful appearance.