Hallo Tosis the dwarf is the fourth main character in my book. I know, it's kind of a stinky name. Right from the beginning, Hallo had a hard life. First, his father stuck him with that horrible name. Then, he finds that he's the least talented dwarf in the history of the Dwarf Kingdom. This gets him banished.
So, he's forced to wander the Iron Mountains, unable to get help from the dwarves of the Kingdom, and unwilling to go down to Calendria and reveal himself to the Big Folk. Finally, he decides to end it all, but changes his mind at the last minute, which is when he enters the story.
Hallo turns out to be invaluable. He helps the village in their plan to defeat Sharky and his pirate band. He also learns a few interesting things about his family history that change his relationship with his father.
He's feisty and funny and another standout character. He took a little while to develop, but once he did, he really took off. He's the perfect finish to the quartet of Eric, Stig, Kate, and Hallo--the group that became The Deliverers.