Jack's best friend and the brains of the group, Quint is a cautious and pragmatic thinker who loves conducting science experiments and designing monster-fighting gear.

Initially introduced as Jack's crush, June is a well-rounded and capable member of the group with a strong sense of individuality. She is proficient in surviving on her own and maintains her composure in challenging situations.

Formerly a school bully, Dirk is the muscle of the group and contributes his strength for their survival. Despite his tough exterior, he has interests in gardening and sewing.

A manipulative and cunning character who initially appears to help Jack and his friends but has ulterior motives due to his loyalty to a greater evil.

An old conjurer who becomes an ally of Jack and his friends, providing crucial information about the apocalypse's origins and the existence of a larger threat.