Vault Boy

Vault Boy is presented as a young male, dressed in a blue jumpsuit (called a vault suit) with yellow down the middle and on the cuffs of the suit, with blond hair styled in a distinctive swirl. He is typically seem with a wide beaming smile, but has been shown to make other facial expressions as well. His signature pose is to stand with a hand extended in a thumbs up.

Vault Boy is portrayed as having an upbeat optimistic personality, being charismatic and hard-working. Vault Boy enjoys a good adventure, whether it just be killing people who do no good, or finding loot to add to his stash. However frequent bodily harm often happens to, by, or around Vault Boy in displays of gore, with the Vault Boy depicted as indifferent to the suffering of others, hinting at his sadistic qualities. Vault boy seems to be inexplicably lucky. Vault Boy speaks in a 1950's dialect, and is sometimes politically incorrect.