The NPCs were a bunch of NPCs created by Ultimate_Overlord to create the Death Lord and other tasks. They were completely loyal to him and never disobeyed any of his orders. While the NPCs were designed to build, they could also fight, and UO used them several times to fight the main crew.
All named NPCs
|26||NPC 26 is seen working on the death lord when Ultimate_Overlord tells the NPCs to hurry up.||Pig duel|
|96||NPC 96 is briefly seen in the background working on the death lord when Ultimate_Overlord tells the NPCs to hurry up.||Pig duel|
|98||NPC 98 is briefly seen in the background working on the death lord when Ultimate_Overlord tells the NPCs to hurry up.||Pig duel|
|100||NPC 100 was an NPC picked by Ultimate_Overlord to be his personal assistant. He flew UO's ship around for most of his appearances and he reports the completion status of the Death lord. During Season 3 he pilots a ship when the NPCs attack Chuckle's house, however the ship is destroyed and he is injured but survives. He spends his last appearances in bandages and is replaced by NPC100.1 afterwards.||
|21||NPC 21 is first seen working on the Death lord, but MrPig attempts to persuade him to stop working for UO. Later he is briefly seen repairing the crashed death lord along with some other NPCs. Later he joins the NPC attack against Chuckle's house but is shot in the face by Old_Sword and dies.||
|29||NPC 29 is briefly seen working on the Death lord when MrPig is sent flying by UO's lightning. He is later seen inside the Death lord when it is launched, and he tries to stop Herostar and Sheep_e but is quickly killed by them.||
|30||NPC 30 was seen inside the Death Lord when it is launched, he tries to stop Herostar and Sheep_e along with NPC 29 but is quickly killed by them.||Take off|
|10||NPC 10 was briefly seen repairing the crashed death lord. He ws later seen as one of the few surviving NPCs after the attack, along with NPC 100, 27 and 2, where he was wheelchair bound||
NPC attack part 1
|36||NPC 36 was part of the NPC attack but was killed by Diamond_Lover outside Chuckle's house.||
|27||NPC 27 was one of the few surviving NPCs of the NPC attack, along with NPC 100, 10 and 2. He was left in bandages with 2 walking sticks.||
NPC attack part 1
|60||NPC 60 is only seen dead when Ultimate_Overlord asks if he is alive.||NPC attack part 1|
|2||NPC 2 was one of the only surviving NPCs of the attack, he was the least damaged and UO took him to pilot a new ship to attack the house. He asks UO what was in the dispensers and UO tells him. He falls out of the ship when it is blown up by Miss_Mouse firing a TNT cannon at it, he survives and is ordered to kill the crew. He fights Diamond_Lover but a block of TNT lands next to him, blowing him up.||
NPC attack part 1
|100.1||NPC 100.1 was seen piloting a small platform and became UOs new personal assistant. Like NPC 100 he reports the status of the new Death lord. He captures Herostar and Miss_Mouse in a cage and flies them to UO.||Launch base|
|101||NPC 101 was sent by UO to kill Diamond_Lover and Sheep_e along with NPC 102. He was equipped with a leather cap and tunic and armed with an iron sword. He battled Diamond_Lover and initially had the upper hand but was disarmed and killed with his own weapon.||More power|
|102||NPC 102 was sent by UO to kill Diamond_Lover and Sheep_e along with NPC 101. He was equipped with a leather tunic and leggings and armed with an iron sword. He battled with Sheep_e but was killed when Sheep_e wrestled his own sword into his face.||More power|
There were loads of unnamed NPCs, there were 99 NPCs working on the first death lord, but when it crashed only 10 survived and repaired the Death lord. During Season 3 UO made many more NPCs, and assigned them to 3 groups, one would work on the Death Lord MKII, one would build his castle and the others would be fighters. Any remaining NPC from the last series also became a fighter, most of the fighter NPCs were killed during the NPC attack, so UO focused more on re-building the Death Lord.
Once it was complete any NPC who worked on it became a fighter and they all participated in the NPC fight on the Death lord. A bunch of Unnamed NPCs broke into Chuckle's house and were able to kill him, with only 4 of them killed. Any NPC left in the Death lord when it exploded were killed, leaving only the ones who were working on the Castle alive. When Ultimate_Overlord was killed all the remaining NPCs faded from existence. The only NPCs seen from then were the first failed ones as the spawner for them was placed inside the castle.
- At the end of season 2 only NPC 100, 21, 10, 36, 27, 60 and 2 survived out of the 100 that were made.
- 100 NPCs were made for Season 2, while loads more were made for season 3, the total number is never stated.
- NPC 100 has the most appearances out of any NPC.
- During Overlord Chronicles it shows the creation of NPC 1, 2, 3, 4, 99 and 100 along with many other unnamed NPCs.
- Ultimate_Overlord never shows any aggression towards his NPCs, but did show some impatience towards them at time.
- It is unknown why all of the NPCs disappeared when UO died, it was likely because when he disconnected the program that was controlling the NPCs stopped connecting to the server.