Vault Boy Vault Boy is the mascot character of the Vault - Tec corporation within the " Fallout " universe , appearing in their adverts , manuals , products and training films . He was also to appear in some issues of the Hell ' s Chain Gang comic of Hubris Comics , but because of the Great War , the series was never produced . In the " Fallout " games , Vault Boy is used to provide an iconic representation of almost all stats ( perk s , trait s , skill s etc . ) and items in later games available to the player character , being a generic representation of one ' s actions and survival , and also appearing in achievements and trophies for " Fallout 3 " , " " and " Fallout 4 " , as well as the mascot of the " Fallout " series itself . In appearance , he is a young male cartoon character with wavy blond hair , wearing a vault jumpsuit . He most commonly expresses a wide grin , but has been shown to make other facial expressions as well . His female counterpart is Vault Girl . Vault Boy , not Pip - Boy . Vault Boy should not be confused with Pip - Boy , which is the name of the personal information processor used as a game interface in " Fallout " , " Fallout 2 " , " Fallout 3 " , " " , " " and " Fallout 4 " . Made by RobCo , this device has its own mascot shown on the plate of the Pip - Boy 2000 in " Fallout " and " Fallout 2 " ( with pointy ears , red and yellow jumpsuit , red hair ) . The 3000 model , created under a Vault - Tec / RobCo joint - venture , does not feature RobCo ' s own mascot . While the name of the Vault - Tec mascot ( round ears , blond hair , blue and yellow vault jumpsuit ) is not present in the original games themselves , he was called Vault Man in the " Fallout " instruction manual . However , for some reason this name was forgotten - it was never used in any of the following Fallout content including games nor by any developers , only Vault Boy was used and became his real name . According to " Fallout " developers Leonard Boyarsky ( creator of the character ) and Tim Cain , he was always referred to as Vault Boy or Fallout Boy , not Pip - Boy . The misconception stems from the fact that the developers of " " ( Micro Forté ) confused the two and called the Vault Boy - " Pip - Boy " ( which even ended up being used also by Chris Avellone when he wrote the Fallout Bible ) . The makers of " Fallout 3 " returned to the real name " Vault Boy " in the game itself , although confusingly enough he is still called " Pip - Boy " in the trademark legal documents . Appearances . The Vault Boy appears as a representation of almost all stats in all games and equipment in " Fallout 3 " and " " . It also represented in Vault Boy bobblehead s appearing in " Fallout 3 " , snow globe s containing a Vault Boy appearing in " " , and a Vault Boy puppet appears in One Man , and a Crate of Puppets . He also appears in a Vault - Tec commercial on TV in the " Fallout " intro , in the " Leaving The Vault " Vault - Tec ' s video in " Fallout 2 " , as an actual person in a special encounter in " " , and in Shop - Tec interface in brown hair version in " " . Vault Boy is , on some images , accompanied by another Vault Boy who looks exactly the same but with black or brown hair , or with alternative vault boyish things like creatures or items . On others he is accompanied by Vault Girl . A black version of Vault Boy appears briefly in the " Leaving The Vault " video in " Fallout 2 " , with his hair fashioned in a crew cut .