In a flashback to Rome, Holtz appears wearing sunglasses - surely they didn't have them in the 18th century [Actually, the first sunglasses were invented in 1752 by James Ayscough.]

When Angel and Connor are fighting the vampire in the nightclub, in a long shot, Angel punches a vampire on his right. However, if you play it in slow-mo, Angel's hand doesn't even touch the actor. [Something spotted in slow motion and isn't visable in normal speed isn't a mistake.]

In the final episode of season 4, 'Home,' Angel tracks meets is reasoning with Connor in a clothing store. It is noticeable that there are large windows in the shop which are exposing Angel to the deadly mid-afternoon rays. Angel can only walk around in daylight in Wolfram and Hart because of their special windows. So how come he isn't bursting into flames in the clothing store? [As mentioned in several episodes of Buffy the Vampire Slayer and Angel, vampires can get around in INDIRECT sunlight. This is the type of light that was filtering in at the sporting goods store, therefore Angel would be okay.]

No one ever mentions to Angel that Jasmine eats people, nor does he learn of any hints that leads towards her eating people. Yet somehow when e confronts Jasmine on the bridge, he somehow already knows this detail. [Angel was around Jasmine for long enough to know that she takes people into her room and they apparently vanish - once released from her spell, it's not difficult to realise what's almost certainly happening to them, particularly as the priest in the other dimension refers to her as "the Blessed Devourer".]

In the episodes 'Shiny Happy People' and 'The Magic Bullet', Fred and Angel are infected with Jasmine's blood for a while before her spell breaks; they only snap out of it when they look at her and see her true face. Gunn, Wesley and Lorne, however, only have to be touched with the blood and they snap out of it immediately without seeing her face. [Gunn, Wesley, and Lorne are exposed to Cordelia's blood, not Jasmine's. Cordelia's maternal link to Jasmine causes her blood to work differently and faster on Jasmine's enchantment because all of Jasmine's blood came from Cordelia during the pregnancy.]

In the episode 'Players', season 4, Gwen is struck by lightning and we later see the envelope she was holding is badly scorched. The papers that were inside, however, don't have a mark on them. [If you keep watching the episode when Gwen is pulling out the map of the house and showing it to Gunn, you can easily see several burn marks on the map; which was inside the envelope when she got struck by lightning.]

In 'Awakening', season 4, Cordy repeatedly mentions that Wesley has never seen Angelus, but Wesley fought Angelus back in season 1, episode 'Eternity', when a drug made Angel change temporarily. [In "Eternity" Wesley explains that Angel only thinks he is Angelus because of the drugs the actress slipped him. He describes it as "artificial perfect happiness", Angel never actually turned. This also explains why Angel does not kill the actress (can't remember her name) in the basement. The real Angelus never would have let her go. Also, drugged Angel never killed anyone even outside the office. When the real Angelus is there (Buffy, Season 2 and Angel, Season 4) bodies pile up.]

Angel's crew (except Lorne and Conner) revert back to thinking that they're 16 years old following Lorne's spell. Cordelia however already knew Angel when she was 16, yet she acts as if she doesn't know him already. (See Season 1 of Buffy). [Cordelia met Angel during the spring of her sophomore year, but we have no idea when her 16th birthday was. If they reverted to shortly after that birthday and her birthday was sometime in the fall or early winter, she wouldn't have known him yet.]

When Angel, Fred, and Gunn are trying to find where Lorne's performing, they come across his headliner ad at the Tropicana, which states "17th Straight Week." At the end of the last season Lorne was just leaving for Vegas, and the previous episodes have established that Angel and Cordelia have been missing for three months. Assuming Lorne started performing the week he arrived in Vegas, his show should be in its 14th straight week. [Firstly, three months is probably an approximation - it could be a week or two more than that. Secondly, some time must have passed between Angel's rescue and the trip to Las Vegas - he's had time to fully recover from his ordeal, look for Cordelia (there's the events of the episode "Ground State", for example) and so on. This could easily take at least a couple of weeks, which makes the 17 week notice quite possible.]

The Tropicana's "future stealing" scam seems to depend on Lorne's abilities too much to be as elaborate as depicted. The operation and black market in futures would have to have been in place well before he got there, so how were they doing it before Lorne showed up? Randomly taking destinies from people in the casino and just HOPING they were worthwhile? If so, what would they do with the people whose destinies they'd stolen? Let them play the slots until they die and then somehow dispose of the bodies or turn them loose in the streets of Vegas and draw the mortal world's attention to themselves? [Just because we don't know the way the casinos plan worked before Lorne turned up doesn't mean it couldn't have worked. For all we know they could have been using another demon or any number of techniques. A little imagination is all that's called for.]

In the episode Ground State in Season 4, Angel tells Gwen when they're in the elevator that he doesn't breathe but at the same time he is panting. [Vampires don't need to breath to live but their body still functions as it normally would when living. Breathing is what naturally happens when one is moving alot and they can also pass out from lack of air but cannot die because of it.]

In "A Hole in the World," while Fred is laying in the infirmary she calls Angel "a big, handsome man who saves me from the monsters". Those are the exact same words that she called Angel when he saved her in Pylea in season 2. [This isn't trivia - Fred knows (or at least strongly suspects) that she's dying and is making joke for the rest of the group about the similarities of both situations. Angel smiles fondly at her and says 'Yeah, thats the way it works'.]

In the episode "A Hole in the World" there's a connection between the Angel and Spike argument about who would win in a fight between cavemen vs. astronauts and Fred becoming Illyria. Like Illyria the cavemen are old and powerful while Fred is a scientist like astronauts. A little before she dies Fred says of course the caveman would win. She then dies and is taken over by Illyria. [Consider that Fred actually did live as a "cavewoman" for years in a demon dimension, and it isn't clear when the series ends that Illyria actually did win, what with Fred's memories and personality starting to reappear.]

Angel, Spike, and Lorne track Eve down to Lindsey's apartment and come in to question her. Who invited Angel and Spike? (It's not public accommodations, because we find out earlier in the show that Lindsey's signed a lease.). [Lindsey signed a lease for the apartment Spike was living in. He was also no longer in that dimension, therefore, not considered alive. Also due to all the markings to mask the apartment would mean no one lived there.]

Angel says at the end that the cyborg version of Wesley's father probably learned all he knew from the files at the Watcher's Council, but in the Buffy episode "Bring On The Night" Giles makes it clear that all the files belonging to the Council were destroyed in the explosion, so where did the cyborgs find out every detail of Wesley's life (back to age 7)? Wesley only started working at Wolfram and Hart a few months after "Bring On The Night", so they wouldn't have known to gather information on him before the Council was blown up, and we know they didn't get it from his real family as, when Wesley talks to them at the end of the episode, it's clear they have no idea what's happened. [Not all the files belonging to the Watchers Council were destroyed though. Rutherford Circe took a number of them with him when he defected to Wolfram & Hart, so other White Hats could have leaked information to the enemy as well.]

Given that that everyone in Wolfram and Hart was killed back in season 4's "Long Day's Journey", how is it possible so many people are talking about last year's Halloween party in "Life of the Party"? While one or two may have survived by not coming into work that day, it's unlikely that many people would be working there now for more than a few months. [No-one survived by avoiding work - Lilah says in a later episode that the beast tracked down everyone who worked there. However, at the end of series 4, we find out that the LA office has been completely rebuilt and restaffed. It's conceivable that everyone was brought in from another office, or even another dimension, and so all know of the same party.]

When Spike and Angel are talking in Angel's apartment. Spike sits down on Angel's couch. At that time he hadn't realized that he could "will" himself to touch and affect objects around him. Therefore he would have fallen through the couch, much less make the cushions move when he sat. [Later on in this episode the "Reaper" explains that he has complete control over how Spike interacts with the living world. This explains how he was talking to Fred earlier in the episode and then suddenly fell through the floor. Or when the Reaper made Spike invisible to everyone around him. The Reaper wanted to mess with his mind by constantly changing the rules like this.]

In the scene where Spike takes the elevator down to the basement, he is walking down the spooky corridor. If he is suppose to be non-corporeal, his shoes shouldn't make any sound as he walks but you can hear his footsteps. [The rules governing Spike's entire existence can be changed on whim by Pavayne - since he's trying to spook Spike by making him walk down the creepy, badly lit corridor, echoing footsteps seems to be the next logical step.]

Nina asks if Angel can cure her of lycanthropy, and he says no. But why can't he? In the fourth season of Buffy the Vampire Slayer, Oz found a way to prevent the transformation through meditation. That information should be available to the characters on this show as well. [Oz gains a measure of control through meditation, but as the events of that Buffy episode show, he was still prone to "wolfing-out" under certain circumstances. This hardly qualifies as a cure, so Angel was quite correct to tell Nina that he couldn't cure her.]

Considering that Spike never visited Sunnydale or L.A. during Wesley's tenure in either place, and Wesley was in England before that, how does Wesley recognise him straight away? Even if he's heard about him from Angel or in books why would he assume that this is him? Some people suggest Wesley found a picture of Spike while researching Angel's past, but Giles conducted a similar investigation in season 1 but had never even heard of Spike in 'School Hard', let alone know his image well enough to recognise him on sight. Unless Wesley is a substantially better researcher (unlikely, given Giles' experience) he shouldn't know him so well. [If Giles has already researched Spike then he most likely kept most of the things to do with him in the same place. In season three Wesley comes along & has access to Giles' material so if he took the time to look into these things he may have found all the information he needed.]