In his future timeline, Ahab was the master of the Hounds—mind controlled mutants who hunted down other mutants for Ahab and his masters, the Sentinels. One of the Hounds, Rachel Summers, escaped from him and eventually time traveled to the present. Ahab followed her to the past and was defeated by the X-Men, X-Factor, the New Mutants and the Fantastic Four during the "Days of Future Present" crossover.

Later issues of Excalibur revealed that scientist Rory Campbell was the man who would become Ahab in the future. Campbell learned of this in the present and tried to prevent this fate, but he was eventually merged with his future self. The merged Ahab joined the Four Horsemen of the immortal supervillain Apocalypse, taking up the position of "Famine" within that group. He aided in the capture of several of The Twelve before being sent into an alternate dimension.