His appearances in Season 1 of the HBO series mean that viewers won’t have to accept a brand new character as a co-lead right off the bat in Season 2, and also lead me to wonder: will Will on the show manage to avoid the major injury he sustains in The Subtle Knife?
He debuts in the second book: The Subtle Knife, and is a major character through to the end of The Amber Spyglass as the third and final book.
In Philip Pullman’s His Dark Materials book trilogy, he doesn’t appear at all in Northern Lights/The Golden Compass, which started the whole series.
Will is arguably the biggest variable when it comes to the adaptation at this point.