Deputy Weld

Deputy Weld is a Protectron robot that guards the gate of Megaton. He appears to have been programmed to have a somewhat 'western' personality, as when the player speaks to him he refers to them as "partner".

He is also known to ally himself with the player and fight against any hostile creatures that approach the city gate.

Quotes

 * "Welcome to Megaton. The bomb is perfectly safe, we promise. Please hold for threat level assessment. Threat level minimal. Open the gates. Open the gates. Welcome to Megaton." 
 * "Have yourself a nice visit, partner."
 * "Need some grub? Try the Brass Lantern."
 * "Welcome to Megaton. Friendliest town around."
 * "Thirsty, partner? Try Moriarty's. Coldest drinks in the Capital Wasteland."
 * "Welcome to Megaton. Please stand clear of the gate."
 * "Welcome to Megaton. Enjoy your stay."
 * "Have yourself a good stay, partner."
 * "Ya'll better be careful with that thar weapon, Ya hear."
 * "Welcome to Megat-o-o-o-n.. the bo-o-o-omb is perfecty safe, we pr-o-omise. (After the destruction of Megaton, where Deputy Weld is malfunctioning outside).

Appearances
Weld appears only in Fallout 3.