Main protagonist and central Immortal of the series. Nearly 400 years old, he initially hides from the Game but is forced back by Slan Quince. Runs an antique shop with Tessa, later moves to Paris, and eventually returns to Seacouver. He fights numerous Immortals, overcomes a corrupting Dark Quickening, faces the Watcher tribunal, and accidentally kills Richie Ryan while battling the demon Ahriman.
Shared trauma and loss of mutual acquaintances deepen their personal bond.
A web of social connections that provides emotional support, tactical assistance, and grounds Duncan in humanity.
They operate within the same narrative sphere, facing parallel existential threats throughout the season.
Explore the full interactive character relationship map of Highlander: The Series