Raymond Gallant is a member of the Talamasca who Marius catches observing him in Venice in the late 1400s, who provides Marius with information about known sightings of Pandora. After the destruction of Marius's palazzo, Marius reaches out to him telepathically but is unsuccessful contacting him, later writing him a letter. Raymond sends him the Talamasca's information about Armand's whereabouts, cautioning him not to seek him out.
Marius comes to Lorwich in England to see Raymond, but discovers he has aged during Marius's recovery from the fire. Marius demonstrates some of his powers to the Talamasca at Raymond's request, and the two continue corresponding until his death.
In Prince Lestat, Raymond is a ghost, still working with the Talamasca from the shadows, having learned to achieve a physical form from Gremt Stryker Knollys.