Doylan

Doylan is a ghost from The Legend of Zelda: Phantom Hourglass, named for Doyle the carpenter. He is the second-ranking of the four knights of the Cobble Kingdom, and the third one met. He looks like the other Cobble knights, with his garb being green. His remains are buried in his own trap-filled temple on the east side of the Isle of Ruins. When Link speaks to him, he introduced himself as the protector of the key keeping the ruined kingdom sealed. He is impressed with Link's ability to navigate all the hazards in his temple, and tells Link he is welcome to take the King's Key, since he is trying to return King Mutoh to rest. He then instructs Link to return the key to Bremeur, the third knight, who protects the seal. If Link speaks to him again after helping the king, he thanks him, saying they can now sleep in peace.