At Jocasta Menos' suggestion, Archie Ransom -- aided by Andrew Krane -- developed an elaborate meme to combat the ontological shift into History B caused by Carl Fletcher and Richie Talbot: a "live action role-playing game" in which the Westercon '73 attendees investigated Krane's disappearance. Participants could take on the roles of MARPA agents and assets representing the United States, or loyalists and converts to the Atlantean cause. Undergirding this narrative structure was a third, subtler meme to infect the cynics and standers-by -- the idea that this whole "game" was propagated as cover for an experimental Cold War psychological experiment.
Genevieve Abeille played the VOICE OF THE COUNCIL, head of the Atlantean delegation channeling the will of the Atlantean High Council.
Jocasta Menos played MAURDUNN, Atlantean warrior-princess (with possible shifting loyalties?) who may be being seduced by American culture.
Charley Helix played FRANCUS OVIDIUS NOCTIS, better known as OVID, a delegate from the Atlantis-allied dolphins (they have no concept of "nation") incarnated into human form to better understand humanity.
Chelsea Quinn Yarbro played ARANA, a channeler who gets messages from ancient Atlantean forebears (and perhaps even pre-Atlantean antediluvian civilizations).
Terence McKenna played ENDENDROS, a gardener who has traveled among humanity to learn of psychopharmacopia from all human cultures and to bring Atlantean plant and fungal wisdom to humanity.
Kim Stanley Robinson played GIRAND, a crystal/earth mage/humans would call him an "architect," who has housed millions in Atlantean/formerly Atlantean-held territories in the United States, a passionate believer in Atlantis's desire to make sure all humanity is housed and fed.
Archie Ransom played SEBASTIAN STONE, the head of the MARPA/US delegation to the Atlantean Cultural Mission, longtime spymaster and sometime occultist and libertine.
Roger Martin played AGENT DOUBLE ZERO, hardened, not jaded; sarcastic, but still a true believer; dutiful to the ideals at least, if not perfectly to the orders given.
MJ Hort played MITCH HORT, ever in every 1970s America an intelligence agent; in the Earth of Atlantis Risen a former recruit for the U.S. Army's "Earth First Division," which uses Atlantean precepts to improve American fighting prowess, now working for MARPA.
Anna Turner played SUZANNE CHARLES, a musician, video technician and artist, and MARPA consultant on media subliminals, bardic magic, and visual illusions generated through technomagic at the MARPA Media Lab.
Clint Bigglestone played JOHN ALLEN, a MARPA strategist and military historian who uses predictive sciences to provide MARPA teams with executive decision-making capabilities in the field.
Hilda Hannifen played ALISA THOMAS, an independent magician who believes fervently in libertarianism but works with MARPA and the US government because the alternative—being ruled by a mystical hive-mind—is 100 times worse.