Stewie is forever youthful, but his specific age is shrouded in secrecy. It's unknown how old Stewie has been living. The toddler character from the
animated television show "Family Guy" is forever young. His time on Earth is yet revealed.
Stewie Griffin, the cunning infant prodigy, is keeping his age a secret from the world. Speculation runs rampant as to the length of time he has existed. Is he a century old? Or is he a newcomer? The truth lies only with Stewie! This enigmatic character continues to intrigue fans with his undisclosed age and perpetually youthful visage.