Buffy the Vampire Slayer
Season 4, Episode 20
Air date May 9, 2000
Written by Doug Petrie
Directed by David Grossman
Episode Guide
"New Moon Rising"
"War Zone"
Sarah Michelle Gellar Buffy
Nicholas Brendon Xander
Alyson Hannigan Willow
Marc Blucas Riley
James Marsters Spike
Anthony Stewart Head Giles
Guest Starring
Amber Benson Tara
Leonard Roberts Forrest
Conor O'Farrell Colonel McNamara
George Hertzberg Adam
Emma Caulfield Anya
David Boreanaz Angel
Co Starring
Bob Fimiani Mr. Ward
Jade Carter Lieutenant

"The Yoko Factor" is the twentieth episode of the fourth season of Buffy the Vampire Slayer, and is the seventy-sixth episode altogether. It was written by Doug Petrie and directed by David Grossman. It originally broadcast on May 9, 2000.

Adam agrees to remove Spike's chip if he helps him by isolating Buffy from the rest of the Scooby Gang.


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Spike: You're not getting it, Mr. Bits. You're gonna be interestingly dead. Little Miss Tiny's got a habit of bollixing up the plans of every would-be, unstoppable bad-ass who sets foot in this town.

Colonel McNamara talks with Mr. Ward about plans for The Initiative, getting Riley back and dealing with Buffy. Spike tells Adam that Buffy is going to be a difficult challenge to defeat and he shouldn't underestimate her. Spike talks about killing two Slayers and not being able to kill Buffy, especially because of the chip now in his head. The two plan to separate Buffy from her friends.

Still upset about Angel, Buffy returns from L.A. to her empty dorm room. Xander brings Riley some rather colorful clothes to wear, and they talk about their mutual distaste for Angel. Not realizing that he didn't know, Xander accidentally tells Riley about how pure happiness with Buffy is the trigger that removed Angel's curse.

Giles is singing Lynyrd Skynyrd's "Freebird", when Spike surprises him by showing up in his apartment. Spike talks with Giles about files inside The Initiative that he might be able to get for a very large price. Spike tells Giles that Buffy doesn't respect her former Watcher anymore, and that upsets Giles.

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Riley: Xander took my clothes to clean `em and left me these. Does he, uh, hate me in some way I don't know about yet?

Willow and Tara play with their new kitten while planning their class schedule for next year. They also talk about future housing plans, but Willow hasn't talked with Buffy yet and isn't sure what she wants to do now that things have changed so much.

Riley goes to Buffy in the funny clown pants Xander gave him to wear. Using a radio, he's tapped into The Initiative and is making sure he's aware of everything going on with the operation. She mentions that Angel upset her, but she doesn't want to talk about it and Riley leaves. Xander and Anya bring Spike fatigues to wear and among them is a gun, which Spike is amused to find and is apparently ready to shoot Xander only for the chip to go off as soon as he aims it. Xander is amused that Spike can't even aim weapons anymore, especially considering the gun is fake. Recovering, Spike continues to tear apart the Scooby Gang by making Xander feel unwanted by convincing him that the rest of the gang doesn't feel he's useful.

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Angel and Riley first meet each other, and have their fight

Buffy goes patrolling and runs into Forrest, who is also looking for Adam. They argue as they go into a cave and find Adam. The three of them fight, Adam skewers Forrest and Buffy makes a run for it. Limping, she falls and slides down a hill, hitting her head on a rock. Pretending to have sneaked into The Initiative and retrieved some disks with information, Spike charges into Giles' place. Giles continues to get drunk while Willow tries to decrypt the disks. Spike notices Willow and Tara's behaviour towards each other and, realizing they're in a relationship, decides to use it and talks to Willow about her new 'Wicca' interests and how Buffy and Xander don't seem to support it. Willow thinks that means that their friends aren't accepting their romantic relationship.

Riley hears that there is trouble on the streets through his radio and goes to check it out. He finds that it is Angel fighting off the commandos, and Riley refuses to let Angel go see Buffy. The two have a brutal fight, of which Angel is clearly the victor. Since the fight is personal for both combatants, no punches are pulled. Angel, who normally refrains from using his superior physical strength against a human and still stinging from Buffy's recent comments in LA, holds nothing back in the fight. Similarly, Riley, having just learned what makes Angel lose his soul, uses every weapon (literally) on him. During the fight, Riley uses his tazer, a bottle, and his baton on Angel.

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Buffy: I guess I'm starting to understand why there's no ancient prophecy about a Chosen One and her friends.

The fight violently ends when Riley, having momentarily stunned Angel with his taser, is lifted by Angel and thrown into several trash cans. Angel then picks him up again and throws him once again into the side of a building. Finally, both run off when a military truck comes down the street. Buffy returns to her dorm room and Angel shows up. As Angel tries to talk to Buffy, Riley barges in and points a gun at Angel. Angel taunts Riley and the two come to blows again. Buffy separates them and wants to talk to Angel alone. Riley refuses to leave the room, so Buffy and Angel depart to the hallway, though not before Angel taunts Riley with a superior smirk.

Buffy goes off on Angel and then they laugh when Angel confesses he came to make up. Angel admits that he had no right to talk to Buffy like he had before, and explains that he had been attacked by the Initiative soldiers and Riley only waded into the middle of it and immediately accused him. Accepting, Buffy also admits that Angel was not entirely wrong; the two are no longer a part of the other's worlds, and she had no right to barge in on his. Having concluded his business, Angel leaves, stating that he doesn't like Riley, and Buffy thanks him, amused and grateful towards his jealousy.

Spike reports back to Adam, happy to have split up the Scooby Gang. Riley is worried that Buffy has reunited with Angel, and confesses that he already knows about how Angel can lose his soul, which set him off. They profess their love to each other and then Buffy brings him bad news. She tells him that Forrest is dead and he leaves quickly.

Everyone meets at Giles's house, and Buffy intends to go back to the cave believing that Adam wouldn't have been there for no reason. As Giles gets more drunk and more bitter about the fact that Buffy doesn't need him anymore, Buffy declares she's going to the cave alone. Both Willow and Xander (with Spike's words ringing in their minds) take exception at this; Xander believing that Buffy only needs him around for menial takes and accuses her of this. Buffy defends herself, and gets angry at Xander for telling Riley the full details about her relationship with Angel. Tara and Anya, feeling very uncomfortable as the quarrel quickly descends into a huge argument, sneak into the bathroom and hide. Soon personal feelings start to come up, as Willow makes her dislike of Xander and Anya's relationship vocal (particularly, the fact she and Xander are hardly apart) and accuses Buffy of not taking her seriously and being uneasy with her since discovering Tara was her girlfriend. Xander begins to argue that Buffy and Willow forgot about him when they went off to college... Then realizes what Willow has just said and is shocked (with a "bloody hell" coming from Giles who has gone upstairs).

By now, Buffy has had enough of her supposed friends attacking her, and angrily asks how they could possibly help her? Xander and Willow are stunned into silence by these hurtful words, and Buffy declares she's on her own and can see why the prophecies never mention a Chosen One having friends. As she leaves, she tells everyone she's going to someone she can count on.

In Adam's lair, Riley shows up as an expected guest.


  • Spike knows exactly what to say to each member of the Scooby Gang to break them up, foreshadowing each character's personal insecurities that would be explored in "Restless".
  • Willow refers to Tara as her girlfriend for the first time.
  • Spike opinions that what makes Buffy such a successful Slayer is her friends and family supporting her, a premise that will be revisited in 'Fool for Love'.
  • When the argument begins, Anya and Tara retreat to the bathroom together, one of several occasions where the two comparative newcomers to the Scooby Gang pair up apart from the core four of Buffy, Willow, Xander, and Giles. 

Body Count

  • Forrest, staked by Adam

Behind the Scenes


  • This line was cut for length:
Spike: "Now that you've turned Super Wicca and you're damn near Amish. All candles and hand-ground herbs..."

Pop Culture References

  • The title of the episode refers to Yoko Ono, blamed by many for The Beatles' break up. In this episode, Spike acts as the "Yoko factor", sowing dissension within the Scooby Gang. Also, when Spike asks Adam if he has ever listened to the Beatles and Adam answers that he likes Helter Skelter. Spike remarks that he is not surprised, which is probably a reference to Charles Manson and his murders (Manson believed that the Beatles had hidden messages directed at him, and named his killing spree Helter Skelter)
  • Willow's line: "If ever a wiz there was." is a reference to The Wizard of Oz.
  • Buffy made a reference to The Godfather with this line: "Family. What kind of family are you? Corleones."
  • Xander and Giles reference Batman with this exchange:
Xander: "You and Willow go do the superpower thing. I'll stay behind and put around the bat cave with crusty old Alfred here."
Giles: "Ah, no. I am no Alfred, sir. No, you forget. Alfred had a job."
  • Spike mentions the "wild rumpus", a reference to the book "Where the Wild Things Are", which also lends its name to another episode in season 4.
  • When Spike says to Adam "Let's not quibble over who failed who" is reminiscent of The King of Swamp Castle saying in Monty Python and the Holy Grail "Let's not bicker over who killed who."

International titles

  • French: Facteur Yoko (Yoko factor)
  • German: Der Yoko-Faktor (The Yoko Factor)


Goofs, Bloopers & Continuity Errors

  • Angel needs an invitation to enter Buffy's dorm room, but in "The Freshman", Sunday and her vampires were implied to have entered dorm rooms at will.


Buffy: "You wanna tell me who ran your face into that doorknob?"
Angel: "Not really. It's not 'world in peril' stuff."

Willow: "Hours. Days maybe. Anyone suggesting months would not be accused of crazy talk."
Giles: "Whatever happened to Latin? At least when that made no sense, the church approved."

Anya: "Xander delivered clothing."
Giles: "Church approved."

Buffy: "Xander. He is the deadest man in Deadonia."

Xander: "Try those on. You'll feel like a new man."
Riley: "Would this man have a bright red nose and big, floppy feet?"

Willow: "Besides, when is there any us two? You two are the two who are the two. I'm the other one."

Spike: "Wow. I mean, yeah. I get why the demons all fall in line with you. You're like Tony Robbins. If he was a big scary ... Frankenstein looking ... You're exactly like Tony Robbins."

Riley: "Well, there you go. Even when he's good he's all Mr. Billowy Coat King of Pain."

Willow: "Crack a government encrypted code on my laptop? Easy as really difficult pie."
Spike: "You're not exactly the wiz these days either. God, I'm never going to get paid."
Willow: "I am a wiz."
Tara: "She is a wiz."
Willow: "If ever a wiz there was."

Buffy: "I'm checking out that cave."
Forrest: "My orders exactly."
Buffy: "Alone?"
Forrest: "We're spread a little thin, so yeah. Family's tearing apart."
Buffy: "Family. What kind of family are you? Corleones."

Xander: "You and Willow go do the superpower thing. I'll stay behind and put around the Batcave with crusty old Alfred here."
Giles: "Ah, no. I am no Alfred, sir. No, you forget. Alfred had a job."

Adam: "You are sure?"
Spike: "I feel it in my bones, it's, uh ... Call it the 'Yoko factor'. Don't tell me you've never heard of the Beatles."
Adam: "I have. I like Helter Skelter."
Spike: "What a surprise. The point is, they were once a real powerful group. It's not a stretch to say they ruled the world. When they broke up, everybody blamed Yoko. But the fact is, the group split itself up. She just happened to be there."

Buffy: "So ... I guess I'm starting to understand why there's no ancient prophecy about a Chosen One ... and her friends."
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