Chem addict

This is a list of NPC characters who are addicted to chems. Knowing these people is a good way to get some chems for yourself.

Fallout 1 and 2
Currently no info.

Fallout 3
There are currently quite a few addicts in Falllout 3. Sorted by Town, they are:

Leo Stahl
Talking to the doctor in Megaton can get him to reveal Leo's crazy chem addiction. Mostly Jet. After this you can talk to him and talk him into quitting (good karma). He will give you a key. Go to the Water Processing Plant, and there is a locked desk full of Jet and money (along with some other chems).

Billy Creel
Though not technically addicted to any chems, it is thought that he might be addicted to Nuka-Cola.

Paulie Cantelli
Talk to Vera Weatherly and ask her about some gossip. She can tell you some interesting stuff. Mr. Lopez is considering suicide, for example. She can also tell you that Paulie Cantelli is addicted to Jet. Asking around confirms this. You can find his house, which is filled with Jet, Psycho, and other chems. It is not free to take, however, and you will lose karma. You can avoid getting caught by simply closing the door behind you, though. While speaking to him you have the option of offering him Psycho. If you give him enough Psycho you will soon find him dead (see Overdose (quest)).

Narkomane