Dobo

Dobo is an Anouki from the Isle of Frost, living in the Anouki Estates in Phantom Hourglass. He is among those Link questions while he's searching for a Yook who has abducted and impersonated one of the villagers. Dobo tells Link that Mazo is honest, and therefore can't be the Yook. Mazo, in turn, tells Link that Dobo is also telling the truth.

As it turns out, neither Dobo or Mazo are being impersonated.