Although not given much of a personality, Hilda follows Brun without question and is one of her seconds-in-command along with Sig. She is just as warlike as the rest of the Valkyrans and is shown to be disappointed once at being denied a battle when they come across the remains of Starcruiser 5.5, though still very enthusiastic about stripping it down for parts.
She uses a mace-like bludgeoning weapon when in close combat. The staff can elongate so she can fire off rays for ranged fighting. When flying, her ship is a distinct blue color to match her clothing.
- Hilda's name originates from Hildr, a female name that means "battle" or "fight" in Old Norse. 
- Hilda is possibly named after Brynhildr, one of Odin's Valkyries and the main character of the Völsunga Saga and Der Ring des Nibelungen. Brynhildr is also said to be inspired by Brunhilda, a Visigoth princess who lived during the second half of the 6th century and became notorious for her cruelty and avarice. Whether either of these apply to Hilda herself are unknown.