Ghido, also known as Gill in the Anthology translation, or Guido in the RPGe fan-translation, is a character from Final Fantasy V. He is an ancient turtle who lives in a shrine on Galuf's World. Bartz, Lenna, Galuf, and Faris try to visit him, but Exdeath destroys the shrine and submerges it.
Bartz and his friends travel to meet Ghido after acquiring a submarine, and Bartz makes fun of him, thinking him to be an ordinary turtle. Galuf breaks up the fight, and Ghido tells them to travel to the Great Forest of Moore to intercept Exdeath.
Later, in the Merged World, Ghido is living in his shrine, which has now resurfaced, and Bartz, Faris, and Krile visit him. Krile has a splinter, which turns out to be Exdeath in disguise. Exdeath shows off his power sparring with Ghido, who puts up a good fight. Exdeath departs as the Interdimensional Rift emerges in the skies over Castle Tycoon. Ghido accompanies Bartz, Faris, and Krile to the Library of the Ancients, where the scholars from Castle Surgate welcome him.
With the Sealed Tome restored, he explains to the Light Warriors about the Sealed Weapons they will need before they take on Exdeath in the Rift. After they obtain the first tablet, Exdeath unleashes the power of the Voidin the library, declaring he's going to "take care of a turtle infestation." After Exdeath has been destroyed in the Interdimensional Rift the library, along with Ghido and the scholars inside it, is restored.