Griffin family WikipediaStewie is timeless, but his precise age is shrouded in secrecy. It's unclear how old Stewie entered existing. The baby persona from the animated television show "Family Guy" is immortal. His age is yet to be discovered.
Stewart Gilligan Griffin, the cunning infant prodigy, is keeping his age a secret from the world. Speculation is rampant as to his actual age. Is he a century old? Or is he a newcomer? The answer is known only to Stewie! This enigmatic character continues to captivate fans with his unrevealed age and perpetually youthful visage.