This is the first Buffy the Vampire Slayer crossover. This episode continues on from where "The Harsh Light of Day" ends. This is Oz's only appearence on Angel.

This episode received a 6.0/9 in the overnight ratings.

James Marster's (Spike) first appearance on this series. Later in the fifth season, he joins the cast full time.

This episode ranked 3rd out of 15 WB shows for the week.

This episode scored a 3.7 in the national ratings.

This episode ranked 88 out of 139 in prime time shows.

Doyle: Manny the Pig said he didn't know anything about a vampire called Spike.
Angel: So?
Doyle: Yeah, well, he said that before I mentioned anything about Spike. So, you'll find him at a joint down on third called the Orbit Room.
Angel: Okay, I'll start with Manny the Pig, then.

Cordelia: (on searching for the ring of armara) This isn't a needle in a haystack. This is a needle in Kansas.

(after Angel gets the ring of Armara)
Doyle: Why don't you put it on and I'll stake you. It'll be fun!
Angel: Maybe later.
Doyle: What, are you out of your mind?
Angel: I said, maybe later.
Doyle: Yeah...
Angel: Doyle!

Angel: Oz.
Oz: Angel.
Angel: Nice surprise.
Oz: Thanks.
Angel: Staying long?
Oz: Few days.
(long pause)
Doyle: (to Cordelia) They always like this?
Oz: No, we're usually laconic.

Spike: It's called addiction, Angel. We all have them. I believe yours is named Slutty the Vampire Slayer. (music stops) Thank you. Speaking of little Buff...I ran into her recently. Your name didn't come up. Although, she has been awful busy...jumping the bones of the very first lunkhead who came along. Good-looking fellow. Used her shamelessly. She is cute when she's hurting, isn't she?
Angel: I think she's cuter when she's kicking your ass.

Spike: (as Rachel) How can I thank you, you mysterious black-clad hunk of a night thing?
(as Angel) No need, little lady, your tears of gratitude are enough for me. You see, I was once a badass vampire, but love and a pesky curse defanged me. Now I'm just a big, fluffy puppy with bad teeth. No, not the hair! Never the hair!
(as Rachel) But there must be some way I can show my appreciation.
(as Angel) No, helping those in need's my job, and working up a load of sexual tension and prancing away like a magnificent poof is truly thanks enough.
(as Rachel) I understand. I have a nephew who's gay, so...
(as Angel) Say no more. Evil's still afoot. And I'm almost out of that nancy-boy hair-gel I like so much. Quickly, to the Angel-mobile, away!

Angel: Is this your big strategy for getting the ring back?
Spike: I had a plan.
Angel: You, a plan?
Spike: A good plan. Smart, carefully laid out. But I got bored. All that watching, waiting. My legs cramped up.

Cordelia: Frankie Tripod? Oh, I get it. Some kind of three-legged monster, right?
Doyle: No, he’s human.
Cordelia: Then what's his name supposed to... Oh.

Spike: Quickly! To the Angel-mobile! Away!

Spike is referring to the Batmobile, the name of Batman's primary vehicle of choice in the comics. It has followed the character throughout the decades and in virtually every media he has appeared in, evolving into different designs.

Cordelia: I don’t think Oz appreciated being called "my little Bamm-Bamm" all night.

Cordelia is making a reference to Bamm-Bamm from the animated series The Flintstones.