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.

A child of Loki with the ability to shapeshift between human forms and a gender identity that shifts accordingly. Alex uses he/him or she/her pronouns depending on the day. Prickly, lethal with a garrote, and one of the most distinctive characters Riordan has written.

A Valkyrie and daughter of Loki who is trying to keep her two worlds - Norse mythology and her devout Muslim family - from colliding. One of the most grounded and admirable characters in the series.

An elf and one of Magnus's two companions from his mortal life. Deaf, communicates in sign language. A rune magic practitioner of exceptional talent from a family that considered his deafness a source of shame.

A dwarf and son of Freya with an extraordinary gift for fashion and craftsmanship. One of Magnus's two companions from his mortal life. His sense of style and his skill with materials are not separate things - he makes weapons and armour of genuine power.