Want a buddy in Fallout: New Vegas? Sure you do. In fact, you probably want a couple New Vegas companions.
In Fallout: New Vegas, there's a total of 6 permanent humanoid companions and 2 permanent non-humanoid companions, but you can only have 2 (one of each kind) at a time following you. The 6 companions in New Vegas are Craig Boone, Lily Bowen, Rose of Sharon Cassidy (Cass), Arcade Gannon, Veronica Santangelo and Raul Tejada. To find their locations, watch the videos below.
The two non-human followers are Ed-E and Rex.
Description of each New Vegas companion provide by the Fallout Wiki.
Step 1 Craig Boone
Craig Boone, an Ex-NCR sniper with a grudge against Caesar's Legion and a chip on his shoulder. He can be found in Novac.
Step 2 Lily Bowen
Lily Bowen, a friendly nightkin and former member of the Master's army. She can be found in Jacobstown after you get the quest Guess Who I Saw Today.
Step 3 Rose of Sharon Cassidy
Rose of Sharon Cassidy, also known as Cass, a caravan merchant and the daughter of John Cassidy. She can be found in Mojave Outpost.
Step 4 Arcade Gannon
Arcade Gannon, a member of the Followers of the Apocalypse with a mysterious past. He can be found in the Old Mormon Fort.
Step 5 Veronica Santangelo
Veronica Santangelo, a disillusioned Brotherhood Scribe. She can be found at 188 Trading Post.
Step 6 Raul Tejada
Raul Tejada, a ghoul mechanic and former gunslinger held hostage by Tabitha, the mad leader of the State of Utobitha. Raul can be found in Black Mountain.
ED-E a prototype eyebot designed for combat and reconnaissance operations. It can be found in Primm.
Rex, a cyberdog belonging to The King. It can be found in The King's School of Impersonation in Freeside.
The DLC Dead Money also has 3 available companions:
- Dean Domino - ghoulified Pre-war lounge singer
- Christine - a mute ex-Brotherhood Scribe
- Dog/God - a schizophrenic nightkin
Plus, there are a bunch of temporary companions in Fallout: New Vegas on the Xbox 360 or PlayStation 3. Go to the Fallout Wiki to learn more.