Marc Cory was a Space Security Agent. He landed on Kembel with crew members Jeff Garvey and Gordon Lowery, to find a Dalek base on the planet. His crew members both got infected by Varga plants and Cory was forced to kill them. Marc Cory himself was later exterminated by the Daleks. (DW: Mission to the Unknown)
Bret Vyon and Kert Gantry went to Kembel to find out what had happened to Cory. (DW: The Daleks' Master Plan)
