Adam was a creation made by Professor Maggie Walsh and Dr. Engleman. Adam was meant to be a part of the Initiative. Made out of human, demon and computer parts, he was the ultimate soldier. His power source was a Uranium core, which was virtually ever lasting. However there was one glitch, he was more of a homicidal maniac than a soldier. As soon as he was made he killed Maggie Walsh, and the killing spree began. Within the Initiative he killed Dr. Engleman and Forrest. Adam's plan was to take over the world, starting with over coming the Initiative and bonding all demon and vampire races. He accomplished this. But it wasn't to last. Buffy's first encounter with him wasn't good. He was indestructible, fast and had a lot of strength. The only way to do it was with magic, Willow, Giles, Xander and Buffy all did one spell and something possessed Buffy and she was able to fight Adam. She punched her fist into his body and pulled out the Uranium core and Adam was dead.

Ampatta used to be an ordinary 15 year old girl, until she was sacrificed, and she remained in her tomb as a mummy. A seal was kept to ensure that Ampatta never awoke. That seal was broken and the 500 year old mummy was released. To live she has to drain the life out of her victim with a kiss. When Ampatta comes to Sunnydale Xander becomes attracted to her. But she needs maintain her life, she reaches out to kiss Xander and to kill him. Xander keeps her at bay for long enough for her to go back to her mummy self, and Buffy rips her off Xander, along with her arms.

April was a robot made to love someone, be a girlfriend for the maker, Warren. All she was designed to do was to love him. But Warren got a new girlfriend, he got bored of April and literally just left her in his dorm room. April went after him, looking for him, genuinely thinking that Warren had misplaced her. She went to Sunnydale to look for him. There she found out the truth, that Warren had a new girlfriend. As she fought Buffy her batteries began to run out. And there she died on the swing set in Sunnydale playground talking to Buffy.

Beljoxa's Eye

Beljoxa's eye is an oracle type creature which lives in a dark dimension, an eternal vortex. Only demons can open the gateway to it. Anya and Giles go to see it to find out more about The First and if there's a way to kill it.

Bob

Bob, part of Jack's gang, had been dead for some time before his best friend could raise him. When the whole gang was back alive the first thing they wanted to do was to bake a cake, or in other words make a bomb and plant it in Sunnydale High. They did this, but Xander managed to find out just in time and went to the school to disarm the bomb. Though in doing so he had to evade Bob and his friends. Bob came to another sticky end when Xander pushed a vending machine on his head.

Catherine Madison

Catherine Madison, mother of Amy Madison, was a witch. She involved herself into Amy's life so much as to perform a body swap between the two. She began to live Amy's life how she wished her daughter would. She went around injuring cheerleaders just to get a spot on the squad. But the truth was found out and the body switch was reversed, only Catherine's soul was trapped into a cheerleading trophy.

These Indians were native to Sunnydale until the Europeans came along and sent them to slavery. When Xander was digging, he fell into a tomb of some kind and freed the Chumash Spirits. These spirits were obviously angry because of the way they were treated. So Xander was given every disease which the Chumash endured, and the spirits began their revenge. The sprits were unleashed on Thanksgiving Day. There was a siege at Giles' house, and with Angel's help, the Indians were gone.

This being was brought to Sunnydale through a spell the gang did to try and bring back Buffy, which worked. This being was the result of the spell, a balance for bringing back Buffy. It could get into the minds of the gang and take on the guise of the others to influence them somehow. Buffy could not fight it, so Willow & Tara made it corporeal and Buffy chopped it's head off.

Glory blasted into town in a total unaware kinda thing. She was called by the monks "The Beast". She has extraordinary powers of strength. She also seems to want the key. She seems to feed on humans by sucking the insanity out of the. As she's still a fairly new foe not much is known about her, apart from the business with the key. It turns out that Glory is not a demon but a God. Glory and Ben are brother and sister, but not the ordinary kind, they share a body. When it's Ben in he body and Glory comes from him, she can't remember what's been going on, as it was Ben there, not her. Ben doesn't seem to as evil as Glory, and wanting the same kind of things as her. If you kill Ben then you kill Glory, and that's exactly what Giles did when Buffy let Glory go when she turned into Ben, Giles took it on himself to kill her and him to protect the future.

The Initiative was a government based organisation situated underneath Sunnydale University. All soldiers were recruited from the US Army. There aim was to maintain a low demon population and to wipe them out. However they underestimated the demons and other dark creatures. When there super soldier Adam went on their side things got pretty chaotic. The Initiative were delving into things they didn't understand fully. Riley was a part of the Initiative, and when he learnt of Buffy's slaying capabilities he asked her to meet Maggie Walsh. And Buffy entered the secret world of the Initiative. At first everything seemed normal, but once Maggie tried to get Buffy killed, Buffy was out of there. After trying to work on Buffy's side and be undercover agent working with the Initiative Riley decided that the Initiative  wasn't a good thing and he left. With Adam on the other side the Initiative found that things were going from worse to bad. The Initiative was over run with demons, and many soldiers died. The US government decided to ignore any claims that this place existed and filled it up with concrete.

Jack

Jack used to be a student at Sunnydale High. He was killed by an owner of a liquor store, but was brought back to life by his grandfather not moments after he died. He pretended to still be alive and carried on at Sunnydale High. He was seen as the class bully. One night he had a confrontation with Xander, but Xander seemed to have made a good impression on him and invited him into his gang. Jack then went, with Xander, to raise the rest of his dead friends. First on the list was Bob. Xander eventually shook them and found out what their plans for the night here. To make a bomb and plant it in Sunnydale High. They were almost successful. But Jack didn't fancy dying much and disarmed the bomb with only second to spare, only to get eaten by Oz in werewolf form moments later.

Rack is some kind of mystical person in the darker side of magic and black magic. He was introduced to Willow by Amy, after Willow said she needed a pick me up in the way of magic. But in order for Willow's magic to increase she had to give a little. So while Willow was going to her sessions with Rack a demon was summoned as a side effect. Rack sensed power in Willow, and through his magic sent a feeling of elation and euphoria to Willow. After Willow decides to turn to vengeance her magicks start to get tapped out, she turns to Rack, and absorbs all of his magic and kills him.

Shrouded Sorcerer

This sorcerer was used by Giles and by the Mayor, only he's had a past with Giles. Giles introduced him to his wife. With that favour under Giles' belt the sorcerer "faked" giving Angel's soul back on the Mayor's command.

Ted was a human, but after his wife left him, this genius devised a robot who would carry on bringing his wife back to him after he had died. But the wives ended up dead in a closet. One of them could have been Joyce. Buffy killed Ted, after which he was put on "the scrap heap...of life."

This is a society of assassins, demon and human. This order was sent out to kill Buffy, 3 assassins were called forth by Spike and Drusilla. Buffy managed to kill them off one by one, with the help of Kendra, the second slayer and Xander and Cordelia. 

The Pack

When a class of Sunnydale High students visited the local zoo they didn't think that they would be possessed by the spirits of hyenas. The students included Xander. Soon their bodies would be destroyed. Buffy, Giles & Willow try and think of a way to get them all to return to the zoo and reverse the process. However before that happens the pack manage to kill the school mascot, a pig and eat the principal. Luckily Xander wasn't a part of that. They're all brought back to the zoo and the magicks is reversed.

Veruca seemed like any normal person on campus, she was in a band, called Shy, like Oz. But that wasn't the only thing she had in common with Oz, she was also a werewolf. Since they were both werewolves, they seemed attracted to each other, because of the wolf inside. However Oz didn't want anything to do with Veruca, he wanted to be with Willow. Veruca decided it was time to get rid of the girlfriend, and went after Willow. Oz came, and at sunset both Veruca and Oz turned into werewolves, and fought it out. Oz tore through Veruca's neck in time for Veruca to do any damage. Oz almost killed Willow, if Buffy hadn't come in time. Oz felt he could never put Willow in danger again, so he left. Veruca had a big impact on Oz, and some things which she were true, about the wolf being inside all the time.