Lieutenant N'ot

Lieutenant N'ot is an orc ghost located in Crestfall.

Speculation
Given the backstory of Crestfall, he may have been a member of the Old Horde. However, he wears the Kor'kron tabard which could mean he is of the New Horde. Alternatively, N'ot could have been a part of the original Kor'kron order mentioned in The Shattering: Prelude to Cataclysm while under the Old Horde.