Mildew

Mildew is a cantankerous, and ugly old viking, the secondary antagonist in the DreamWorks Dragons. He lived in a small house on the outskirts of Berk, sharing it with a sheep named Fungus.

Personality
Mildew is a consummate complainer; Gobber even said of his arrival "Here comes Mildew with the complaint of the day." It is implied that Mildew's house was built so far away from the village because of his abrasive personality. Due to his staff decorated with dragon teeth, and the fact that he had a pair of Zippleback feet, a Monstrous Nightmare claw, and a Gronckle head in his house, it can be inferred that in his glory days he was an excellent dragon-slayer, this would explain why he is so rude and arrogant. Mildew also seems to dislike Hiccup, probably due to Hiccup's befriending of the dragons, taking every chance he gets (and making a few along the way) to blame their problems on him and the dragons.

Mildew hates dragons more than anyone else on the island, and he talked about holding a party to celebrate the banishment of the dragons from Berk. And he was the only one who was not happy about the dragons returning. In fact, Hiccup's words "there are those who will never accept the dragons, and will do anything to drive them away" proved to be all to prophetic in many situations.

Mildew is also frightened of certain dragons, as he was scared of the Scauldron that Hiccup and the other vikings were trying to get some venom from, which later bit Mildew on the backside. Also, a Whispering Death snarls at Mildew, which involved Mildew running away on a Deadly Nadder. He also seems to not particularly care about the feelings of other people, as he was openly gloating about the banishment of the dragons while everyone else was miserable.

Weapons
While not shown to be very adept in fighting, he is never seen without his hooked staff, which he uses to knock out an Outcast guard.