Grandpa Gonzo

Grandpa Gonzo is the father of Papa Cosmo, the father-in-law of Mama Cosma, the grandfather of Cosmo Cosma and the great-grandfather of Poof. He and his wife, Grandma Cosma, are the first known member of the Cosma family.

Little is known about him, for he has never truly appeared in an actual episode.

Appearances
Turbo nick special, "Fairly Family Tree".

Trivia
If fairies are supposedly immortal as its been applied on the show several times, then how is it possible for them to grow old?