vault boy
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Mascot of the Vault-tec company, a major technological developer of the Fallout universe, before that world's atomic apocalypse. This is also the mascot of all the game's perks and traits. In the Fallout TV series, it is revealed the Vault Boy was inspired by Cooper Howard, who was the original mascot and spokesperson for Vault-tec.
The Vault Boy and the "T51-b Power Armor" are the two most iconic elements in the Fallout series.