Death Mountain Trail Gatekeeper

The Keaton Mask Guard is the guard at the gate to the Death Mountain Trail in Ocarina of Time. He is one of the three Hyrulean Soldiers assigned to guarding Kakariko Village, the two other (at the entrance to the village and near Impa's house) are the ones who tell Link what time in-game clock is.

Link must give Zelda's Letter to the Death Mountain Trail Guard, after that, the guard will open the gate and anyone can pass. If Link talks to the guard before buying the Hylian Shield, he can get a discount on it and buy the shield for just 50 Rupees at the Bazaar.

His son asked him to get a Keaton Mask. The guard buys the one that Link obtains in the Happy Mask Shop for 15 Rupees, and then will be seen wearing it. Seven years later, when the castle town is destroyed, the Death Mountain Trail Guard can't be found anywhere.