The Halo novels offer a theoretically infinite body of source material for the TV show to pull from. A dedicated filmmaker could fill a studio's slate for decades, adapting one book after another. Paramount Plus's Halo doesn't do that. It forges a new timeline with some resemblance to the original narrative. The show borrows occasional characters, events, and plot details from the endless extended universe with some changes. Soren-066 is among the most notable figures from the novel to reach the screen.