
Then they will either return to their original location (except for Raul) or can be told to go to the Lucky 38. If the player already has a companion of a specific type, they need to be dismissed through dialogue.
The player can have one humanoid and one non-humanoid companion (Rex or ED-E) in their party at a time, with both providing their unique companion perks (unless using exploits).
Companions are controlled via the Companion wheel.
Companions are special non-player characters who follow the player, aid them in combat, and provide a unique perk as long as they're in the player's party (whether following them or waiting the perk stops applying when they're dismissed). From left to right: Rex, Rose of Sharon Cassidy, Raul (Vaquero outfit), Lily, Boone (assault armor), ED-E, Veronica, and Arcade. All eight permanent companions in Fallout: New Vegas.