watch 01:38 The Loop (TV) Do you like this video? Captain Krogh was an inhabitant of Sylvaniar. He helped provide security for a castle of scientists. Krogh and the Sixth Doctor and Dr Kravaal discovered Dr Sovak's laboratory where he was working on Cybermen. (COMIC: Revelation!, Genesis!) Retrieved from "https://tardis.fandom.com/wiki/Krogh?oldid=2221922" Categories: Military officers + cat Cancel Save Community content is available under CC-BY-SA unless otherwise noted.