MacRae

MacRae is a a strong, stout Scotsman with a bushy beard who stood guard outside the Blades' hideout in the downtown area of the Boneyard in 2161. Specializing in unarmed combat, he helps the Blades defend themselves, going so far as to teach them hand-to-hand combat techniques, so that they might have a better chance against the Deathclaws and the Regulators.

MacRae is a Scotsman in the same way Patrick is a Celt, most likely - descendant from a family keeping its heritage alive.

Interactions with the Vault Dweller
MacRae also trained the Vault Dweller in unarmed combat after he aided the Blades in destroying the Regulators.