Note: Fictional details from the Myst franchise follow, and will be treated as facts.

Saavedro is the main villain of Myst III: Exile. The main story of the game revolves around him.

Saavedro is a native of the Age of Narayan. Atrus had written Narayan to teach his sons Sirrus and Achenar the final lesson, that Balanced Systems Stimulate Civilizations. Atrus's sons went to Narayan as part of their training and lived with Saavedro, his wife Tamra, and their two daughters. After their lessons were complete, Sirrus and Achenar left with their father, only to return years later. When Sirrus and Achenar returned, they convinced Saavedro and many other Narayani to abandon their old customs. This had a disastrous effect on the Age: several of the huge Lattice Trees were destroyed, and the Narayani nearly died out. Enraged, Saavedro followed Sirrus and Achenar to the Age of J'nanin, only to be marooned there for 20 years. Saavedro eventually learned how to access the other Lesson Ages, but found he could not return to Narayan: it was blocked behind a forcefield, and he believed his world destroyed and his wife and daughters killed. The years of solitude made Saavedro gradually slip into insanity, believing that Atrus had sanctioned his sons' misdeeds, and not knowing that Sirrus and Achenar had been imprisoned by Atrus after they tried to kill him.

When Atrus visited J'nanin again, Saavedro saw his chance for revenge. He prepared an elaborate trap for Atrus, and captured the Linking Book of Releeshahn, intending to lure Atrus to J'nanin and the Lesson Ages to make Atrus pay for Sirrus and Achenar's crimes. However, the Stranger followed Saavedro to J'nanin, and Atrus could not follow because the linking book to J'nanin was damaged during the theft.

At the end of Exile, Saavedro was returned to Narayan, which turned out not be destroyed. It is believed that Saavedro there found his wife and daughters again.

Saavedro was performed by Brad Dourif.