Mido (Total War)

Mido is a Kokiri Chief who betrays his own kind to the Gohma.

First Golden Age
Mido serves as the Chief of the Kokiri before the outbreak of the Gerudo Wars. He is infatuated with Saria, but she doesn't reciprocate his feelings and because of this he is often scolded by the Great Deku Tree, who forbids such relationships.

Gerudo Wars
In 100 AG, the spirit of Sulkaris wanders into the Kokiri Forest and comes upon Mido. Mido, entertained by the idea of overthrowing the Great Deku Tree and ruling over the entire Kokiri Forest, works with Sulkaris to set up an invasion of the Deku Tree's Grove. Sulkaris plans to incapacitate the Great Deku Tree and absorb her Sage powers from him.

The attack is unsuccessful and the Kokiri manage to hold the Gohma off, though Saria is killed during the battle and made into a new Sage. For his treachery Mido is banished by Kasuto from the Kokiri Forest, and Mirora is ordered to replace him.

Sulkaris then opts to outright invade the Kokiri Forest with the entirety of her Gohma forces and absorb the new Sage's powers herself. When asked who the new Sage of Forest was, Mido lies to Sulkaris and tells her that the Great Deku Tree named Mirora and not Saria the new Sage. During her invasion Sulkaris kills and absorbs Mirora, reconstructing her body and becoming alive again. She does not regain her Sage powers however, and she is swiftly broken and killed by the Great Deku Tree. With Sulkaris incapacitated, Mido flees the Kokiri Forest to Misery Mire - the homeland of the Gohma.