Fallout: Brotherhood of Steel companions

This page lists all companions

Characters

 * Dogmeat: The Initiate, with the exception of Cain, can acquire a canine companion named Dogmeat by getting the skill Man's Best Friend which will appear once the Initiate reaches a save point. If Dogmeat dies, he will reappear once the Initiate gets to another save point.
 * Rhombus: will briefly help the Initiate get to the truck where he has hidden a keycard, which gives access to the Vault-Tec Corporate Vault Laboratories. When they get to the truck, Rhombus is blown up by a ghoul suicide bomber and cannot go any further. He wears a Lightweight power armor and uses a Desert Eagle.
 * Mary: Will help the Initiate briefly, by guiding them through the ruins and into the garden.
 * Tesla robot: There are some Mr. Buddy consoles in the Secret Vault Labotary 3 which could be used to buy three special Tesla robots. These robots could be used against super mutants by the Initiate.

Multiplayer
In Fallout: Brotherhood of Steel, one can play with another person using another controller connected to the system. The second player would control another character, which can help in battles and later in the game, can help access areas which require two players. Like Dogmeat, if the second or, also in this case, first player character dies, the other player can make them reappear once they reach a savepoint.