Bohr

 is Keely's Protectron assistant found in Vault 22 in 2281.

Interactions with the player character
Bohr had the following dialogue sequence:

Appearances
was to appear in Fallout: New Vegas, but was cut before final release.

Behind the scenes
Bohr is likely named after Neils Bohr, a physicist who made breaktrhough contributions to understanding atomic structure and quantum mechanics.