A son of Frey, Norse god of summer, who dies on his sixteenth birthday and wakes up in Valhalla. Annabeth Chase's cousin. His voice - wry, self-deprecating, and unexpectedly thoughtful - distinguishes him from every other Riordanverse narrator.

An einherjar berserker from ninth-century Denmark and one of Magnus's hallmates in Valhalla. Fights with two axes, studies comparative literature, and has a complicated relationship with the valkyrie Mallory Keen.

A valkyrie from twentieth-century Ireland and one of Magnus's hallmates. Volatile, skilled with knives, and carrying guilt over a sacrifice she made in her mortal life.

An einherjar from the American Civil War who died charging Confederate lines. Carries a musket that always hits its target. One of Magnus's hallmates in Valhalla.