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We were proud to leave him, so we kept the name "Outcasts" and wear it with pride. A big "fuck you" to the old man.”
Protector Casdin was one of the best fighters in the Brotherhood of Steel (Columbia chapter) and fought side by side with Elder Owyn Lyons in the Scourge of The Pitt. However, disagreements over Lyons' policies in the wasteland led to a split in the Brotherhood and the formation of the Outcasts with Casdin at the helm.
The Schism was not planned. Future founders of the Outcasts were merely dissatisfied with Lyons' focus on protecting the wastes by killing supermutants, seeing it as an ineffectual waste of men and resources that would ultimately destroy the Brotherhood. The situation gradually worsened, finally tipping when Elder Lyons ignored their repeated requests to recover tech from Fort Independence, a pre-War scientific military base. Rallying behind Paladin Henry Casdin, the dissenters abandoned Lyons' command and left the Citadel, taking a large part of its weapons and equipment stockpiles with them. The loss of men and materiel had a significant negative impact on the combat performance of Lyons' chapter, greatly reducing its ability to project power throughout the Capital Wasteland.
Under Casdin's command, they seized Fort Independence, where they pushed back the indigenous raider groups and adapted the former military base for use as their headquarters. Termed "Outcasts" by their angered former brothers and sisters, the renegade soldiers adopted the name as a badge of honor, painting their armor red and black to distinguish themselves from the organization they no longer served. They have also reorganized their rank system and decentralized their operations, to make tech retrieval and long range patrols easier to organize.
 Daily schedule
Protector Casdin can be found standing at the entrance to Fort Independence, the Brotherhood Outcasts headquarters. He holds one of several keys to Fort Independence.
 Interactions with the player character
 Interactions overview
- The Outcast Collection Agent: You can trade pieces of power armor, energy weapons, sensor modules, and scrap metal to Casdin in return for various loot and, eventually, entrance to Fort Independence.
 Effects of player actions
- If you possess Outcast power armor when encountering Protector Casdin for the first time, he will confiscate it, even if you are wearing it.
- Upon first meeting Protector Casdin, if you tell him that you are in the Brotherhood of Steel, it will turn him and all nearby Outcasts hostile.
- Killing Casdin will make all Outcasts permanently hostile, including patrols, for the rest of the game.
|Apparel||Weapon||Other item||On death|
|Outcast power armor*
Outcast power helmet*
*Henry will replace his armor with a set of Enclave power armor but will replace that armor with the Tesla armor but not the helmet, when you trade the armor for supplies in the unmarked quest, The Outcast Collection Agent.
- Casdin automatically repairs any items you give him to full 100% condition.
- Casdin will automatically equip any item you give him if it is better than his current equipment; this applies to armor as well as weapons.
 Behind the scenes
Casdin's voice actor was replaced sometime during production; the audio log in Fort Independence has an entirely unique voice actor speaking Casdin's lines.
- Casdin may enter Fort Independence and never exit.
- Casdin's subtitles when choosing a reward list 5.56mm rounds as ".556 rounds".
- Casdin's dialog refers the 5.56mm rounds as ".556" rounds.
- Tesla helmets in trade, despite accepting Tesla armor. Casdin does not accept
- The door to Fort Independence may still be locked (very hard) Even though Casdin said you were ok to enter. If you did not save before this, you could either pickpocket Casdin or make the truck next to him explode to get the key to Fort Independence without any of the Outcasts being hostile.
Henry Casdin only appears in Fallout 3.
- ↑ Bowditch: "Where Elder Lyons has fought to protect the people of the Capital Wasteland, the Outcasts demanded we move on and leave them to their fates. They insisted there was more important technology to be recovered in a scientific base in the ruins of Fort Independence, to the West. As callous as their decision may be, it's more in line with our original mission. Elder Lyons is an inspiration to us, but to them he's a traitor."
- ↑ Bowditch: "The soldiers rallied behind Paladin Casdin, who was one of Elder Lyons' original squad. They served together for over twenty years."
- ↑ - Good morning, Elder. I'm sorry to report that things are not as they should be. Ever since Casdin was outcast...
- That name is not to be spoken within this Citadel. Do you understand? I wish it were not so, truly I do, but he is Outcast. He has been judged.
- I know the protocols, sir. But the equipment that they stole was very valuable. Our weapons are beginning to deteriorate without the spare parts.
- I understand, Peabody. But you'll need to make do the best you can. If our weapons can't penetrate that Enclave armor, we stand no chance.
- Yes, Elder. I understand. I'm sure... we've got the parts around here somewhere...
- ↑ - Greetings, Elder. I wish I could say that things were well. Unfortunately, I am still having supply problems. When Casdin...
- Scribe. You are not to speak the name of an Outcast in the walls of the Citadel. Is that understood?
- I... I understand, sir. But the Outcasts have stolen a great deal of our uncatalogued equipment. I am beginning to run short of supplies for repairs.
- Then make do with what you have. We may lack the Enclave's resources, but I'm counting on your ingenuity to make up for that!
- Yes, Elder. I understand. Forgive me for speaking out of turn. My... frustration got the better of me.
- ↑ Bowditch: "But when disagreements turned into fistfights, he left with the Outcasts. We lost more allies that day than we ever have to any battle."
- ↑ Anne Marie Morgan: "If they call us Outcasts for our dedication to duty, then we'll wear the title with pride!"
- ↑ Though equal in rank, Protector McGraw is mentioned as inferior in terms of organizational skills to Protector Casdin. This clearly shows that Outcasts operate in a decentralized, goal-oriented manner