Somehow I have missed all of the companions - I am in New Vegas and have Not come across any - I feel sooo lame!

Can someone please tell me where they are?

I tried to make sure this is known as a Spoiler Thread! Thanks!

ED-E - Mojave Express building in Primm

Boone - Novac; can be found in Dinky's mouth at night after 9pm.

Cass - Mojave Outpost barracks.

Raul - Black Mountain, locked away in Tobithia.

Rex - The King's School of Impersonation in Freeside.

Lily - Jacobstown

These are all the companions I've gotten/seen (except for some doctor, but I forgot what his name was and where I found him)

Boone - Novac
Cass- mojave outpost
ED-E - Primm
Rex - freeside
the supermutant woman - jacobstown
Roul - black mountain (state of ulbitha or something)
Arcade gannaon - old Mormon fort (near freeside)
Veronica - 188 outpost

Thanks you both SOO much!

Im having a problem recruiting veronica. I talk to her, and for whatever reason it wont allow me to get her to join.

Any suggestions? Is it bugged, or am I missing something?

I only have one follower, boone.

You can only have 1 follower at a time. Tell Boone to go to the Lucky 38.

Rex and ED-E count like Dog Meat and don't count against your actual companion count, except against each other.

Ok, thank you very much.

I've gone through all dialogue with Cass and can't get her to be a companion. Do I need to do something first? Also is it possible for Ed-I to die? Becoming attached already. Ha. Love the perception range boost.

You must complete Caravan Quests before she is triggered as a companion.

Ok. That makes sense. She did tell me to do that. Should've figured that out. Thanks.

If you're like me make sure you take note of these companions. I already slaughtered everyone in Novack and ended up doing Old Boone in. I still got my dog Rexy though. Only one i can trust in the Mojave Wasteland. He doesn't do much but occasionally he'll knock someone down and make an easy kill for me. Oh, he'll also distract others from shooting you. He's worth bringing around. I don't even know if i can still get the robot, i killed everyone in Primm.

Do all of the companions have side-quests you need to do before they will follow you?

At least one does not, Veronica.

Technically, Rex is given to you with a quest, but you don't have to follow it to have him as a companion.

Boone does need a quest to be done before he will join you.

Cass needs you do do some work for the Crimson, but I only did one quest for them and went back to talk to her.

Basically your allowed 1 Human character and one non-human (robot) character.

In addition to this you can also obtain a Trooper/Ranger depending on your reputation with said faction, as well as a bodyguard in Freeside. All in all, you could total 5- including yourself- people travelling around Freeside. Bet those thugs will think twice now.

Reno

Companions can die in hardcoe mode. They're set as essential in regular mode, so they'll only get knocked unconscious.

ETA - ED-E dies pretty easily in hardcoe, BTW, at least at lower levels. His base health, at least in my game, is 180 hit points, which isn't a lot when going out into the Mojave Wastes. I nudged my ED-E's health up to 500 with the console; I generally reload and try again when a companion dies, but I was getting tired of getting the "ED-E had died!" message 5 seconds into a battle with a couple of geckos. This at least keeps him in the running for a bit longer.