Who is Lord Basil Seal from the novel, The Ghosts of Inverloch, The Wrath of Hypsis, On the Frontiers (Valerian)?

Lord Basil is the chairman of the British Intelligence Agency and works with various other agencies and officials around the world and in the future Earth. He is a gentleman who never appears anything less than impeccably dressed, even when he has just parachuted onto his lawn from a jet. He is well connected, intelligent, and resourceful. He appears in the first two novels of this three-part series.