Talking To Themselves: As many of the voice actors had more than one role, there are a few instances of this, such as with Valanice and Ceres.
Urban Legend of Zelda: Most fans will swear up and down that the desert wanderer can kill you, but there's been no proof of this other than his thinly veiled threat.
The Other Darrin: King Graham's unused dialogue mentioned below is voiced by Danny Delk instead of Josh Mandel. It's unknown as to why Delk was used instead of Mandel, as he hadn't left Sierra at this point, leading some to believe Delk was merely a placeholder until Mandel could record the line, which ultimately never happened.
What Could Have Been: Despite the game being the only one in the series not to feature Graham, poking around in the game's audio files reveals he was supposed to appear and he's still listed in the credits. While there was no official confirmation, it was most likely cut to keep the game on one CD.