Dr. Mallaska was a doctor who worked for SD-6
Dr. Mallaska and several other doctors were instructed to take care of Dixon shortly after he had been shot by K-Directorate agents. Mallaska talked to Sydney briefly while the other doctors tended to Dixon. He asked her repeatedly if she knew the cover story she planned on telling Dixon's wife. Sydney, in a frustrated tone, told him that she knew about the story before asking if Dixon would make it. Dr. Mallaska blatantly told her "we don't know" before heading over and nursing Dixon. Later on, it was confirmed that Dr. Mallaska and the rest of the SD-6 doctors and nurses managed to keep Dixon from dying.