In the lower area of Shattrath City, there are two NPCs which are references to He-Man and Skeletor from the "He-Man and the Masters of the Universe" cartoon. These are Adam Eternum (Alliance), who can be seen with his mount which bears a striking resemblance to He-Man's Battle Cat, and Keldor the Lost (Horde), who claims Adam Eternum has stolen his "grey skull", a further reference to the series' Castle Greyskull.

The two also made appearances in the WoW Trading Card Game.