This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
In spite of his clearly high elven model, he has the voice of a blood elf. This could be due to either an error, that he supports the new direction the blood elves are going, or just something to reflect his rather harsh personality.
Others say that the error could be in his high elven appearance; Darnarian is in fact a blood elf, simply given the wrong model by Blizzard designers.
He could also be like Koltira, a High Elf who declared himself a Blood Elf after joining the Horde but remains physically unchanged and is not addicted to magic.