Golan TrevizeProtagonist / Foundation Councilman in exile
Drives the investigation toward Gaia; presses Quintesetz for coordinates under threat of diplomatic escalation; interrogates Pelorat about the origin of Gaia knowledge; observes the Gaian system from the Far Star.
Councilman TrevizeTrevTrevizeGolan
Harla BrannoMayor of Terminus / antagonist-driver
Mayor of Terminus; capable, pragmatic, and covertly authoritarian; orchestrates Trevize's exile as a deliberate probe against the Second Foundation while using Seldon's appearance as political cover.
Mayor Brannothe MayorMayorold womanOld Lady BrannoHarlabranno
Liono KodellBureaucratic antagonist / Branno's instrument
Receives Branno's strategic briefing; cautions against the Gaia mission; confronts Ambassador Thoobing; ultimately pledges loyalty to Branno's decision and instructs Thoobing to manage Sayshellian diplomacy.
Director KodellDirector of SecurityLionoDirectorKodell
Janov PeloratMythologist and historian
Identifies Quintesetz as a scholarly contact; recognizes the Five Sisters allusions that locate Gaia; cannot recall the anonymous source of his Gaia information; laments the planet lacks a giant satellite that would mark it as Earth.
Professor PeloratPelPeloratJanov
Munn Li ComporFoundation agent / Second Foundation informant
Characterized as conditioned by lifelong Second Foundation mentalic influence; uncertain how to comport himself now that Gendibal is making direct contact; serves as a surveillance relay between the Foundation and Second Foundation.
Compor
Stor GendibalSpeaker of the Second Foundation
Second Foundation Speaker; launches a mentalic attack on Branno's ship, discovers the mentalic shield, proposes a truce against Gaia, and is ultimately revealed to have been manipulated by Novi/Gaia throughout.
Speaker GendibalMasterGendibalStorgendibalSpeaker Stor GendibalSpeaker
Quindor ShandessFirst Speaker of the Second Foundation
Measured leader who is gradually persuaded by Gendibal's mathematics, disturbed by an uncanny resemblance between Gendibal and a young Seldon, and ultimately acts on pure intuition about Trevize's centrality.
First Speakerthe twenty-fifth First Speaker
DelarmiSenior Speaker of the Second Foundation
Politically dominant, rhetorically ruthless Speaker who systematically challenges Gendibal's evidence, attempts to have his remarks stricken, and frames his accusations as paranoia.
Speakeress DelarmiSpeaker Delarmi
Sura NoviHamishwoman, Gendibal's companion and mentalic sensor
Emerges modestly from the cleaning room seeking her clothes; converses with Gendibal about Trantor's history and the Foundation's power; expresses naive curiosity about why Foundation ships cannot conquer all worlds now.
SuraNoviSuranoviremblastiran
Karoll RufirantHamish farmer
Large farmer who leads the mob accosting Gendibal on the road; his emotions are described as unnaturally fixed, suggesting external mentalic control; later implicitly the subject of the mysterious morning visitor.
Rufirant
Lestim GianniSpeaker of the Second Foundation
Speaker who interrupts to press Gendibal on whom specifically his accusations target, triggering Gendibal's explanation of the motive for his delay.
Jogoroth SobhaddarthaCustoms official
Skeptical Sayshellian Customs officer who questions why the Far Star was passed through so easily and reports a second ship on screens.
Namarath GodhisavattaHead of Customs, Dreamer
Small, severe Customs Head who operates on dream-directives and silences Sobhaddartha's concerns about the Foundation ship.
HeadHead of Customs
QuintesetzSayshellian academic / reluctant informant
Reveals the Day of Flight mystery, recounts Gaia's history of military repulsion, discloses the Mule's whispered 'again,' and agrees to obtain stellar coordinates despite personal fear of speaking Gaia's name.
S.Q.
ThoobingFoundation Ambassador to Sayshell
Argues against Foundation military presence in Sayshell; warns that naval deployment will destroy the Foundation's peaceful reputation and provoke war; instructed by Kodell to manage Sayshellian opposition diplomatically.
Blisshelper/messenger
Gaian woman—suspected by Trevize to be a robot supervisor rather than an organic member of Gaia—who admits to smoothing the path for Pelorat's decisive remark and neither confirms nor denies her robotic nature.
Domactantial:sender
Senior Gaian representative who reveals Gaia's history, discloses the Mule as an aberrant Gaian, and informs Trevize that he has been manipulated into position as the sole decision-maker.
Endomandiovizamarondeyaso