Stirling Oliver is elderly member of the Talamasca. He is an Englishman with gray hair and gray eyes, about sixty five years old, and first came to know about the Talamasca while attending Cambridge. Stirling first meets Quinn Blackwood when he is meeting with Mona Mayfair at Mayfair Medical, and becomes his friend and advises Quinn about the supernatural at Mona's suggestion.
After Quinn becomes a vampire, Stirling breaks into Lestat's townhouse at the same time as Quinn is breaking in to leave a letter for Lestat, and Stirling is narrowly saved by Lestat when Quinn is overcome by the need to drink his blood. Stirling and Lestat discuss the amenity between Lestat and the Talamasca, and Lestat gives Stirling messages to bring back to the organization.
In Blood Canticle, Stirling serves as a go between for Quinn, Lestat, and Mona and the rest of the Mayfair family, including Rowan. Stirling mentions having been involved in the search for Morrigan, and comes with Rowan when the Taltos are located.