The Goblin Scribe is actually the son of the Goblin King, making him the prince of the goblins. However, the Goblin King wanted to forget the marriage in which the Goblin Scribe was born into, so he gave him a minor job far from sight.
His body appears to be covered in warts.
In the movie, the Goblin Scribe has deformed legs and feet. Because his legs and feet are so minuscule, he must get around by using a bucket on a pulley.