1. Will Parry is not featured in The Golden Compass. Parry doesn’t come into the story until the second book, The Subtle Knife. In the second half of the television show, however, Parry is heavily featured.
2. In the books, Billy Costa was not found half-dead as a child in the Arctic village. He was rescued along with the other children back in “The Station.” In His Dark Materials Season 1, Billy Costa dies as a child from having his daemon cut out.
3. Ma Costa did not go with the rest of the Gyptians to find the lost children in The Golden Compass. In the television show, Costa has a big part in rescuing the children from the Gobblers.
4. Lord Boreal does not travel back and forth between the two different dimensions in the first book. While in the first season, Lord Boreal frequently crosses the border between the daemon world and our world.
5. Kaisa is a snow goose in the books, but in the television show, she is a hawk.
6. Daemons don’t speak in front of anybody who is not their human in the His Dark Materials book series. The daemons sometimes do talk in front of other people in His Dark Materials Season One.
7. All the nurses in “The Station” had their daemons cut out, but in the first season, only Sister Clara’s daemon has been exorcised.
8. The daemons stay with the adults who have had their links cut off from their humans, but they cannot communicate anymore. In His Dark Materials Season One, they lose their daemons completely once they have been surgically separated.
9. In the novel, Lyra pretends to be dumb when the Gobblers capture her, but in the show, she speaks saying her name is Lizzie.
10. Bernie Johnson, who was an undercover Gyptian whose job was to watch Lyra, does not exist in the television show.