Parker was killed when he was thrown off of a bridge by a gang called the Jackals and then turned into a zombie by Jack O’Toole. He was later decapitated by Xander in The Zeppo.

Seen briefly in Something Blue, the Pargo demon had red skin and sharp teeth. It attacked Xander in his basement after Willow called him a “demon magnet”. The Pargo demon can only be killed by drowning.

Owen was a shy and good-looking boy in Buffy’s class. Cordelia chased him but he asked Buffy on a date. Buffy was forced to leave the date early to go on a Slayer-related mission but Owen followed her. They were attacked by a vampire. Owen discovered he loved being in …

In Dead Man’s Party, Joyce got an evil-looking Nigerian mask from her gallery and hung it on her wall. The mask embodied the power of a demon, Ovu Mobani, which was able to ressurect the dead. If one of the zombies put it on, it made them the demon incarnate. …

In Egyptian mythology, Osiris was a god who became Lord of the Dead and Resurrection after his brother killed him and he was resurrected. In the Buffyverse, Osiris is summoned to perform resurrection spells on Joyce (by Dawn in Forever), Buffy (by Willow in Bargaining (Part 1)) and Tara (by …

Orlando was the Knight of Byzantium who attacked Buffy in Checkpoint and told her more would come. He ended up in the mental ward after being brain sucked by Glory. When Dawn went there in Blood Ties he told her she needed to be killed. Orlando was freed from the …

The Order of Taraka are assassins, or bounty hunters. Giles says about them, “Unlike vampires, they have no earthly desires except to collect their bounty. They find their target and eliminate it. You can kill as many of them as you like. It won’t make a difference - where there …

Olivia was an English woman who had a casual relationship with Giles. She flew over from England to stay with him on two known occassions (The Freshman and Hush). Olivia encountered the Gentlemen and sketched them for Buffy to know what she was facing. Decided to end her relationship with …

Olaf was an ex-boyfriend of Anya, whom she turned into a troll, bagging herself a job as a vengeance demon at the same time. This was seen via flashback in Selfless. He was accidentally released by Willow and Anya in a spell in Triangle and wreaked havoc on Sunnydale before …

Octarus was a one-eyed demon who was a member of the Order of Taraka. Buffy killed him by slashing his throat using her ice skate in What’s My Line? (Part 1).

Nigel was a Watcher who questioned Willow and Tara about their magical proficiency in Checkpoint.

Nezzla demons live underground and use a mystical barrier to protect the Orbs of Nezzla’khan. In Seeing Red, the Trio electrocuted one of the demons and used it’s skin to make a suit in which they could safely pass through the barrier without being vaporised, in order to steal the …

Natalie French was the name assumed by a giant Preying Mantis (a ‘She-Mantis’) in Teacher’s Pet. It took the form of a beautiful woman and mated with young virgin humans in order to hatch it’s eggs. The She-Mantis tried to mate with Xander and Blayne Mall but was killed …

Morgan Shay was a Sunnydale High student, and ventriloquist in the school’s Talent Show. He owned Sid the Dummy. Morgan was killed by a member of the Brotherhood of Seven, who removed his brain. The gang discovered that Morgan suffered from severe headaches and was dying, so his brain was …

Controlling and powerful demon who was banished into a book by monks in the 15th century. The demon could only be freed if the words were read aloud, and just to make sure, the monks sealed the book in a box. The book was accidentally scanned into the school’s computer …