Dr. X: Occultist and physicist, apparently researching interdimensional travel at his base, Fort X, near the Hoover Dam.
Terra Nova Expedition | Terra Australis | Aqui na Terra | Evo Terra | Terra Nova Bay | Terra Networks | Terra Foundation for American Art | Canto della Terra | terra cotta | Terra | A Voyage to Terra Australis | Void Terra Firma | Terra Sancta College | Terra Obscura | Terra-Gruppen | Terra Feminarum | Castrocaro Terme e Terra del Sole | ''Thérèse-Françoise Potain Roland, Wife of the Sculptor'', terra cotta | Terra Vnesa | Terra Sancti Benedicti | Terra preta | Terra Nova National Park | Terra (mythology) | Terra Museum | Terra Findlay | Terra di Bari | Terra del Sole | Terra de Caldelas | Terra Cotta | Terra Bella, California |
Over a career of almost two decades, he has worked on books such as Nightwing, Batman, Star Trek: Debt of Honor, Aliens versus Predator, X-Men, Wildstorm Summer Special, Terra Obscura, Tom Strong, Ocean, The American Way, and Midnighter, as well as many others.
Miss Masque subsequently appeared in the Tom Strong spin-off Terra Obscura, written by Peter Hogan from plots developed by Hogan and Moore.
In Tom Strong #11, Moore and co-creator Chris Sprouse more fully introduce the idea of Terra Obscura being a parallel Earth, "but in our own dimension. In our own galaxy".