Varkan was a Romulan commander, and commanding officer of the Wisdom in an alternate timeline caused when Montgomery Scott rescued James T. Kirk before he could be absorbed into the Nexus, with the USS Enterprise-D following them into the past. Varkan was both feared and respected within his crew. Varkan later contacted Sarek to inform him of a fleet-wide alert that requested sightings of Scott, which Sarek had insisted be brought aboard; the Romulan was surprised when Sarek already knew that a vessel named Enterprise had made the request via another Alliance vessel.