- When I first saw the flashback in the episode of Highlander in which Duncan is banished from his family and village for being a "changeling", I didn't think much about it. Okay, the concept of a fairy changeling fits in with the Celtic culture of the Highlands. Later, I realized that — Highlander Immortals ARE changelings, specifically human-fae hybrids! It explains so much. Most cultures in the world have myths and legends about immortal, supernatural beings analogous to elves and fairies, so this theory works everywhere, not just in Britain and Europe. All Highlander Immortals whom we're aware of are orphans whose parents are unknown. Because the fae don't want halfbreeds among them, they foist these babies onto human families as changelings. Because they don't want too many of the halfbreeds around to cause trouble, they invented and promulgated the Game with that ridiculous "There Can Be Only One" premise, to get the halfbreeds to kill each other off. And of course the fairy genes account for their longevity and the difficulty of killing them. Can't have children? Most interspecies hybrids are sterile.
- According to the series, they're all foundlings as well.
- Well Richie and Duncan are. Whether all immortals are foundlings or are born from human parents (or something else) has been endlessly debated by fans, and it seems a lot to infer from a single instance in a single episode involving what could just be coincidence among two characters which is never brought up again. We never hear the birth stories of any other immortal.
- Although the manner in which immortals are born is unknown, it is canon that all immortals are foundlings. They could have mortal parent(s), fairy parent(s), divine parent(s), or they could even be products of alien genetic experiments a la Stargate, but all immortals (as far as Duncan and Co. know) are foundlings.
- According to the series, they're all foundlings as well.
- In the first movie, Connor does in fact follow Ramirez's advice on how to fight the Kurgan: he uses heart (Brenda saves his life), soul (by demonstrating courage and skill and care for others) and steel (he decapitates the Kurgan with Ramirez's 2500 year old sword). Made a great movie even better!
- The reason why Ramirez, the centuries old Egyptian sounds Scottish is because he and Connor and Heather are all actually speaking in Scottish/Gaelic/whatever Connor's native dialect is.
- It's worth noting that in spite of living through various wars and fighting many immortals Connor's body is in fine condition with no scars to speak of, yet the Kurgan sports a gnarly scar on his neck after his battle with Ramirez. Then you realize, with decapitation being the only way to kill an immortal, that the neck is their one and only weak spot. So wounds to their necks won't heal like the rest of their body.
- This seems proven in the show when Kalas recieved a vicious cut across his throat during a duel with Duncan in the 1920's. Seventy years later, Kalas' once-great voice is now reduced to a throaty rasp.
- In the season 1 finale, "The Hunters," Horton attacks Duncan with a taser in an attempt to immobilize him. But Duncan managed to fight through the voltage and pull the prongs out. The first time I saw this episode, I thought there would be no way he could do that, regardless of how tough he was, because tasers inhibit motor functions. He wouldn't have been able to move. A few years later, I read about the history of the development of taser technology. Around the time this episode was released (1993, I think) the high-powered tasers that inhibited motor function didn't exist yet (those didn't come out until 1998). It was actually very common for people on PCP, or with just a high tolerance for pain, to be able to fight off the older tasers because they were only designed to shock the attacker into submission... which is why the ones we have now use an electrical charge that's the same as the electrical signal the brain sends down to the body, shorting out all muscle control. Basically, if Horton had used one of the modern tasers, the show wouldn't have lasted more than one season.
- In the first episode Connor tells Duncan someone should keep an eye on Richie when he witnesses a duel(Duncan agrees and it's how he ends up taking him in). When watching the show the first time it comes of as because he knows about immortals, but the meaning changes when watching it again after the second season episode where Richie becomes immortal. Duncan and Connor both knew Richie was pre-immortal and that's why Duncan took him in, so he could there to teach him if his immortality was awakened.
- Through the first season of the show, one might wonder how the authorities constantly miss so many headless bodies turning up with signs of destruction around them from the Quickening. The introduction of the Watchers explains this as (while not obviously stated), it's hinted the Watchers want to keep up The Masquerade as much as Immortals do. Thus, it makes total sense that when they see a duel go down, a Watcher is quick to clean up as much of the evidence as possible to keep the existence of people dueling to the death quiet.
- Actually early episodes of the first season did include police investigations into the beheadings and even several potential Friend on the Force characters. It was eventually dropped due to it causing more problems than it solved. After that, the Watcher idea works.
- The Watchers might also want the bodies for study as their purpose is to gather information on Immortals.
- Duncan is just four hundred years old, and yet he is consistently able to defeat immortals that are older than him by a factor of ten or more. Until we see in a flashback about how Duncan got his first Quickening, an older immortal sacrificed himself to give his power to Duncan when he was still young and inexperienced. We don't how old and powerful that Immortal was. For all we know he could have been as almost as old as Mythos. It could definitely explain the edge that Duncan displays in future battles.
Fridge / Highlander