A Bajoran medical official in the episode Babel who tells Kira Nerys that the creator of the aphasia virus is dead and points her towards his former assistant, Surmak Ren.
Galis Blin is a Bajoran administrator seen on a viewscreen in the first-season episode Babel. An engineered virus hidden years earlier in Deep Space 9's replicators by the Bajoran underground is spreading through the station, leaving its victims unable to speak or understand language.
Julian Bashir identifies the virus's maker as a Bajoran scientist, Dekon Elig, and Kira Nerys sets about tracing him. Her enquiries bring her to Galis Blin, who certified Dekon's death in a Cardassian prison camp years before.
Kira presses him for anyone who might know the work, and he recalls that Dekon had a medical assistant named Surmak Ren, now running a hospital on Bajor. That lead allows Kira to abduct Surmak, expose him to the virus and so force him to find the cure.