What do we know about Asher?

Asher is Jonas's best friend. He has a habit of mixing up his words; a habit which early chastisement with the Discipline Wand at the age of three did not eradicate. In one recollected scene, he asks for a "smack" instead of a "snack" and is repeatedly hit. This treatment caused him to stop talking altogether for a time, but essentially he remains an easygoing boy with a good sense of fun.