The leader of The Five Fishes, an engineer in the electricity-supply industry, and Julian’s husband, Rolf has a “dark masculinity” about him and an impatient, jealous, and ambitious personality. He does not particularly like or trust Theo, nor does Theo like or trust him. Theo sees Rolf as power-hungry, and believes that Rolf is actually motivated by a desire to usurp Xan’s “absolute power for himself” rather than to promote justice, compassion, or moral indignation like the rest of The Five Fishes. Rolf is the one who concocts the plan to find a safehouse for Julian in the wake of Gascoigne’s capture by the State Security Police, though he does not remain with The Five Fishes for the entirety of their journey. Once he discovers that Luke is the father of Julian’s child, he not only abandons the group but goes to London to turn them in to Xan in hopes of accruing favor for himself. Rolf’s actions ultimately show that Theo’s assessment of him was accurate—he was motivated not by ideals, but by lust for power.