Gimlok Rumdnul

Gimlok Rumdnul is Gruham Rumdnul  and Derina Rumdnul's son. Though supposedly a dwarven child (the only male one in the game), he reuses the human child model.

Cataclysm
As of the Cataclysm and the flooding of Menethil harbor, Gimlok can be found playing with several other children from Menethil in a row boat. He is much smaller than they are, which shows he is indeed a dwarf.

Model Issue
Gimlok's model is that of a human child, which has raised various questions as to his origins (If he was adopted/Result of some sort of pregnancy outside of the Rumdnull's marriage.). However, as of Cataclysm his size has been cut in half, so he is significantly shorter than the other children. It is likely that due to possible time constraints or lack of usage that a dwarven child model was not designed, resulting with Gimlok's usage of a human child model.

Usage of another model sized down can be seen in the case of Yarlyn Amberstill who uses a sized down dwarven female model, but is referred to and is a child.