List of Foundation series characters
 Characters with their own pages
- Yugo Amaryl
- Blissenobiarella (Bliss)
- Cleon I
- Arkady Darell
- Gaal Dornick
- Salvor Hardin
- Hober Mallow
- Ebling Mis
- The Mule
- R. Daneel Olivaw
- Preem Palver
- Janov Pelorat
- R. Giskard Reventlov, within List of Robot series characters
- Bel Riose
- Hari Seldon
- Raych Seldon
- Wanda Seldon
- Dors Venabili
 Bor Alurin
Bor Alurin (Foundation) The sole member of the Second Foundation to be present amongst the initial members of the First Foundation. He taught Salvor Hardin the basics of psychohistory, but neglected to instruct his pupil further out of fears that a properly-trained Psychohistorian would catch on to the Seldon Plan. This resulted in Hardin's entry into politics and establishment as the first Mayor of Terminus.
 Pelleas Anthor
Pelleas Anthor (Second Foundation) was originally introduced as a researcher in electroencephalographic analysis. Together with Toran Darell II, Jole Turbor, Dr. Elvett Semic and Homir Munn, he sets about using information obtained from brain scans to find the Second Foundation, and to eventually destroy it. However, it turns out that he is in fact a Second Foundation agent who had infiltrated the group to monitor, and if possible control, the direction of the dangerous actions being taken. In a twist within a twist, he was actually part of a Second Foundation deception led by Preem Palver.
 Lors Avakim
Lors Avakim (Foundation) Lawyer to Gaal Dornick when the Commission of Public Safety arrested Gaal Dornick. Used a static field to block out the Commission of Public Safety by using a pocket recorder.
 Ducem Barr
Ducem Barr (Foundation and Empire) is the sixth son of Onum Barr, and enlisted in the fleet as a gunner under an assumed name in order to avoid being killed. Later, he takes revenge by killing the man responsible for the harm to his family. Forty years after this, he becomes an unwilling advisor to Bel Riose who blackmails him with the secret knowledge of Ducem's revenge. He forms a partnership with the Trader, Lathan Devers, and they escape Riose in an attempt to frame him as a traitor.
 Onum Barr
Onum Barr (Foundation) is a patrician of the old Galactic Empire of Trantor, and a senator of Siwenna. He had six sons, five of whom died after being betrayed in a rebellion; his only daughter committed suicide as well. Whilst living quietly and in poverty in exile, Onum meets with Hober Mallow, who thinks that Siwenna is still the provincial capital; that position has been taken by Orsha II. Onum helps Mallow obtain information on the atomic power of the planet, and is repaid with a box of provisions.
 Harla Branno
Harla Branno (Foundation's Edge) Mayor of Terminus during the Eighth Seldon Crisis. Known informally as 'Branno the Bronze' or disparagingly as the "Old Lady". A quiet and calm administrator, she harbors secret sorrow at feeling she will not be remembered in history. For this reason her natural inclination to expand the Foundation Federation prematurely is able to be played upon by Gaia.
 Ammel Brodrig
Ammel Brodrig (Foundation and Empire) is an influential courtier and Privy Secretary at the court of Cleon II. He is sent to observe the general, Bel Riose; being anxious of Riose's abilities. However, he forms a partnership with Riose instead. Their military successes breed suspicion and jealousy in the court which, ultimately, causes their arrest and execution. He is depicted as a particularly corrupt character, lacking even the elementary honesty of honourable corruption. He is loosely based on the ancient Roman Sejanus.
 Lady Callia
Lady Callia (Second Foundation) is the consort of Lord Stettin, ruler of the planet Kalgan. Arkady Darell uses her to persuade Lord Stettin to allow Homir Munn access to the Mule's palace for research purposes. She does this by dropping hints to Lady Callia that Lord Stettin may be in line to rule the galaxy. Lady Callia helps Arkady escape Lord Stettin, who keeps Homir hostage while he sets his plans in motion. Arkady initially thinks (rightly), based on Lady Callia's information, that Lord Stettin may be interested in her as a new consort. Despite Arkady being only 14 at the time, a relationship with an established Foundation family might help Lord Stettin. So it appears that Lady Callia is just removing her as a rival. However, in the last seconds of their parting, Arkady realises there is a lot more to Lady Callia than meets the eye, and that she is in fact a member of the Second Foundation, and is subtly manipulating the power on Kalgan.
 Linge Chen
Linge Chen (Foundation) Chief commissioner of Public Safety, and judge of Seldon's trial. He is described as the "real" ruler of the Galaxy while the child that actually bears the title of Emperor is merely a puppet in his hands. In Foundation he is described by Hari Seldon's word as a shrewd politician: although he publicly disputes Seldon's prediction of the incoming fall of the Empire. As a politician, he is aware of the value of public sentiment.
 Munn Li Compor
Compor betrays Trevize to the Mayor, and also follows him in his search for the Second Foundation. He is also an agent of the Second Foundation, an Observer, with limited powers, but able to report back on new developments. This is a new category of Second Foundationer, created after the near-disaster involving the Mule, whose importance was missed until it was almost too late.
 Lundin Crast
Lundin Crast (Foundation) Member of the Board of Trustees of the Encyclopedia Committee.
 Toran and Bayta Darell
Toran and Bayta Darell (Foundation and Empire) are husband and wife. Toran is a Trader and was born on Haven and married Bayta, of Terminus and a descendant of Hober Mallow. They are sent by the government of the Independent Trading Worlds to Kalgan to seek possible support from the Mule. There they rescue a small man who calls himself “Magnifico” and return to Terminus. It falls to the Mule, and they then flee to Haven with Ebling Mis, and then to Trantor. There, Mis attempts to find the Second Foundation, being driven by the Mule’s psychological control. Bayta realizes that Magnifico is the Mule and kills Mis before he can reveal the location, for which she becomes a Foundation hero. Their son is Toran Darell II, and his daughter is Arkady Darell.
 Toran Darell II
Toran Darell II (Second Foundation) is the son of Toran and Bayta Darell and the father of Arkady Darell, and was known for his advances in electroencephalographic analysis. He was able to quit his job as he receives a stipend from the Foundation due to his mother's services in thwarting the Mule. The stipend is sufficient for a comfortable home in a pleasant suburb, and allows the presence of a servant named Poli to take care of him and his daughter. His abrupt resignation was due to fear that the Second Foundation might learn of his activities and adjust him.
He discovered that the mental manipulations by the Second Foundation left a detectable pattern in brain wave activity, and called it a “Tamper Plateau.” Using this, he could determine who had been directly affected by the Second Foundation. With Semic, he developed a mind static device capable of protecting against this, and further refined it into a weapon against Second Foundationers. With the use of this, he and the First Foundation seemingly destroy the Second Foundation; the small group that is revealed is a decoy, though, and the Second Foundation survives on Trantor.
 Lathan Devers
Lathan Devers (Foundation and Empire) is a Trader sent by the Foundation to spy on Bel Riose and determine his military intents. He and Ducem Barr steal a message sent by Brodrig to Riose, attempting to use it to make it seem like Riose is betraying the emperor. However, this proves both futile and unnecessary, since socio-politic forces work to prevent Riose from defeating the Foundation. In the next story, he is described as having died in the slave mines, presumably a political prisoner under the tyrannical rule of the first Mayor Indbur.
Dom (Foundation's Edge) is one of the inhabitants of Gaia. He answers questions about Gaia for Golan Trevize and Janov Pelorat. His full name begins "Endomandiovizamarondeyaso..." and contains 253 syllables.
 Lord Dorwin
Lord Dorwin (Foundation) is Chancellor of the Galactic Empire and a representative who arrives on Terminus in response to their appeal for military support.
Lord Dorwin has an interest in the origins of the human species, trying to determine if it began on a single planet, and, if so, which. He mentions 'Sol', Sirius, Alpha Centauri, 61 Cygni and Arcturus. The name Dorwin is a reference to Darwin, reflecting a common interest in the origins of humanity.
Although he claims to have an interest in science, Lord Dorwin does not wish to conduct original research (as indicated when Salvor Hardin asks if he plans to visit any of the possible originating planets) but rather bases his studies on the work of scholars dead many centuries before. Asimov marks this as a sign of stagnation of science outside Foundation. The noble lord presents himself on Terminus as an effete aristocrat, proud of his studied non-rhotic accent (which drops away when he is emotional). For example, he pronounces Sirius as "Siwius."
In addition to his (possibly bogus) status as an aristocrat, Lord Dorwin possesses genuine skill as an intragalactic diplomat in his capacity of a leadership representative of the Empire during its declining years. He is responsible for negotiating the treaties that granted autonomy to Anacreon and the other three entities collectively known as the Four Kingdoms. Dorwin disputes the thesis that these territories are independent of the Empire, and his comments are taken by optimistic members of the Encyclopedia Board as proof that the Empire will protect Terminus from threats made by the neighboring Kingdom of Anacreon. However, Hardin's analysis shows that all of his statements cancel out, meaning that he has spoken for five days without actually saying anything.
 Tamwile Elar
Tamwile Elar (Forward the Foundation) is a senior mathematician working on the Seldon Project. The creater of 'the achaotic equations' that make it more possible to get around the problem of chaos and aid in developing psychohistory, Seldon thinks of him as a brilliant man, though is sometimes a bit begrudging or annoyed internally because he thinks of himself as no longer as good as he used to be, as he ages, and dislikes Elar's loud laugh and habit of calling Seldon 'the Maestro.' Elar designs an 'Electro-Clarifier' device to allow more information to be stored in 'Prime Radiants' that hold psychohistorical equations. However, whilst collaborating with the military junta that rules Trantor, he kills Dors Venabili with an intense Electro-Clarifier through its side effect of creating an electomagnetic field that damages the electromagnetic machinery of robots without harming humans. It seems Elar wants to become the head of the Psychohistory Project, and the junta wants Seldon out of the picture so he cannot decry their government as failing, but feels Dors would be difficult to get past. However, Elar does not appear to especially dislike Seldon, and perhaps is even glad that Seldon might drift away with Dor's death without having to be killed by the junta. Dors nevertheless manages to kill Elar and tell Seldon what has happened before dying.
 Mother Rittah
Mother Rittah (Prelude to Foundation) is an elderly woman living in the Dahl sector of Trantor, who briefly meets Hari Seldon. She tells him of the ancient semi-mythical tales of Earth, and of a robot who has never died, known as 'Da-nee, friend of Ba-lee'.
 Jord Fara
Jord Fara (Foundation) A member of the board of trustees of the Foundation of the Encyclopedia Galactica in its early years.
 Sennett Forell
Sennett Forell (Foundation and Empire) is a leader of the Merchant Princes at the time of the conflict with Bel Riose. His exact status is slightly unclear, but he may be the effective leader of the Foundation behind the scenes, although if so he is a less able leader than Salvor Hardin or Hober Mallow. He is Mallow's illegitimate son, but publicly he is only acknowledged as his distant cousin.
 Yate Fulham
Yate Fulham (Foundation) Member of the Board of Trustees of the Encyclopedia Committee.
 Stor Gendibal
Gendibal (Foundation's Edge) is a Speaker of the Second Foundation; the youngest but privately acknowledged by the First Speaker as his probable successor. He is the only Speaker to realise that both Foundations are being controlled by another more powerful external force, which is eventually revealed to be Gaia.
 Mandell Gruber
Gruber is a dedicated gardener on the grounds of the Imperial palaces on Trantor. Occasionally conversing with then-First Minister Hari Seldon, Gruber's cheerfulness, devotedness to the grounds and to the Emperor, and the simplicity of his life convince Seldon that he should be promoted to Chief Gardener. Gruber panics, afraid of the more demanding task, which would entail administrative work, and flees from his promotion ceremony, which is marred by an unsuccessful assassination attempt on Seldon by political enemies. Gruber attacks Emperor Cleon I at the base of the grand staircase of one of the Imperial palaces, killing the Emperor with a nuclear handgun. He is subsequently executed.
 Mayor Indbur III
Mayor Indbur III (Foundation and Empire). He was a one time ruler of the Foundation. His grandfather, Inbur I, seized power and was described as brutal and capable. He removed the last remnants of free elections, and his father Inbur II, was described as only half of Indbur I: he was merely brutal. Mayor Inbur III was described as having neither trait, and as 'a bookkeeper in the wrong job'. He was obsessed by order and detail, and lacked the ability to see the bigger picture.
 Laskin Joranum
Laskin 'Jo Jo' Joranum is a rising politician and demagogue on Trantor. He campaigns on a platform of sector equality, but is actually aiming ultimately at the imperial throne. He tries and fails to persuade Hari Seldon to join his organisation and later tries to destabilise the Imperial government. Hari deduces that he is a renegade from the Mycogen sector, not from the distant planet of Nishaya as per his claim. Seldon is able to unmask Joranum and have him disgraced and exiled.
 Yohan Lee
 Jenarr Leggen
Jenarr Leggen is originally introduced as a meteorologist at Streeling University. His contributions to meteorology pale before what has ever since been known as the Leggen Controversy. That his actions helped to place Hari Seldon in jeopardy is indisputable, but argument rages -– and has always raged –- as to whether those actions were the result of unintentional circumstance or were part of a deliberate conspiracy. The suspicions that were raised helped poison Leggen’s career and private life in the years that followed.
 King Lepold I
King Lepold I (Foundation) King of the Anacreonian Empire. He is described as young, not yet of age, and more interested in hunting that in ruling the planet. His uncle Prince Regent Wienis is the current Regent. The story takes place when Lepold is coming of age and about to be crowned. Wienis convinces him to attack the Foundation, in order to become ruler of the whole Galaxy. Lepold, although not blindly trusting Wienis, agrees. When Wienis' plan is defeated by the Foundation, he is forced to accept the actual rule of the Foundation's Priesthood.
 Publis Manlio
Publis Manlio (Foundation) is Foreign Secretary to the Mayor and Primate of the Church, Purveyor of the Holy Food, and Master of the Temples.
 Cinda Monay
Cinda Monay (Forward the Foundation) is a physicist working on the Seldon Project. She builds the 'Electroclarifier' based on the design of Tamwile Elar, and also an intense Electroclarifier that is stronger than the first type. She thinks Elar is a good candidate for becoming the leader of the Psychohistory Project after Hari Seldon, and says to Dors Venabili, Hari's wife, when she is asked that she would vote for Elar as the successor, before Yugo Amaryl, who was very devoted to his work and had been working on psychohistory the longest after Hari Seldon.
 Homir Munn
Munn is one of a group of conspirators who plan to find the location of the Second Foundation. Together with Toran Darell II, Pelleas Anthor, Jole Turbor, Dr. Elvett Semic they set about piecing together the evidence.
He agrees to go on a mission to Kalgan to find information about the second foundation from the Mule's palace. Arkady Darell, then 14, decides to be a stowaway on the flight, to take part in the adventure. Munn discovers her presence mid-trip. However she quickly persuades him that it is a good idea to have her along, and likewise persuades her father too, that her presence makes the whole trip appear more natural.
When at Kalgan, Munn, with Arkady's help, manages to persuade Lord Stettin to allow him access to the Mules palace for research purposes. Subsequently he unwittingly causes a war with the Foundation at Terminus, although the real cause is a combination of Arkady's machinations reinforced by Lady Callia.
He discovers the magnitude of the Mule's search for the Second Foundation and after the war finishes, returns to Terminus, convinced that the Second Foundation never existed. A mental analysis reveals that he has been manipulated by Callia into believing so.
 Sura Novi
Sura Novi (Foundation's Edge) is an agent of Gaia (Foundation's Edge) who lives on the planet Trantor (Hame) in the guise of an unmarried Hamish woman. Her full name is Suranoviremblastiran. Foundation Speaker Stor Gendibal detects inconsistencies in her brain that cannot be accounted for, making him aware of the existence of a powerful mentallic agent interfering with the Second Foundation. She goes with him to the Gaia system, and then reveals that she has been part of a large plan to make him go there. After the final confrontation in Foundation's Edge, she erases Gendibal's memories of her being an agent of Gaia, and returns Trantor with him, again (and permanently) disguised as a Hamish.
 Stettin Palver
Stettin Palver studied history at the University of Langano but worked at a menial job on Trantor. He was an accomplished student of a Heliconian martial art known as "Twisting," and was initially employed by Hari Seldon as his bodyguard because of this. He was later found to share mentalic powers with Wanda Seldon, and became a member of the early Second Foundation. After this discovery, he worked on the Seldon Plan along with Gaal Dornick, reporting directly to Seldon on its refinement. As Stettin worked with Wanda in finding other people with mentalic powers, improving and discovering their own, and continuing work on the Seldon Plan, Seldon observed that the two "seemed to be inseparable" and looked at each other "with an intensity born not only of intellectual stimulation but emotional motivation as well."
 Jord Parma
 Dr Lewis Pirenne
Lewis Pirenne (Foundation) Chairman of the board of trustees of the Foundation of the Encyclopedia Galactica on Terminus, about fifty years after its establishment. Salvor Hardin eventually takes over when it is clear that the Foundation needs to be led by a politician rather than a scientist. Doubtless his name refers to the famous historian Henri Pirenne.
 Anselm haut Rodric
Anselm haut Rodric (Foundation) The sub-prefect of Pleuma and Envoy Extraordinary of his highness of Anacreon. He visits the foundation to offer it protection in exchange for other services. A veteran of several conflicts with the kingdom of Smyrno, he is an image of the beginnings of barbarism within the periphery of the galaxy during the fall of the 1st Galactic Empire. Haut Rodric was tasked with informing the rulers of the Foundation with the true intentions of the Kingdom of Anacreaon, and to determine the scope and nature of the Foundation's control of Terminus.
 Dr Elvett Semic
 Sef Sermak
Sef Sermak (Foundation). A young "Actionist" politician who tries to convince Salvor Hardin to change his policies; it is implied that he later becomes Mayor. His name may be an allusion to Anton Cermak, who was the mayor of Chicago and (briefly) one of the most powerful local politicians in America.
 Quindor Shandess
 Jorane Sutt
 Tomaz Sutt
Tomaz Sutt (Foundation) Member of the Board of Trustees of the Encyclopedia Committee.
 Golan Trevize
Trevize was a citizen of the First Foundation. He is a former officer of the military forces and later elected to Council. He is self-confident, almost to the point of rudeness, and arrogant, but also intelligent and with a sense of judgement. He is entrusted upon by Gaia to decide whether the future history and evolution of the Galaxy and the human species will be shaped by the First or the Second Foundation or by Gaia, and which of the three courses of action represented by the three parties is the best choice for humanity.
At the climax to Foundation's Edge, he chooses Gaia, using his particular intuition. In the sequel, Foundation and Earth, he debates with himself why — and if — he made the right decision. He searches for Earth and meets R. Daneel Olivaw, on Earth's moon. Olivaw discusses with him the Zeroth Law of Robotics, and Trevize suddenly realises the most basic postulate of Psychohistory: the species the predictions were being made for must be humans, under the assumption that they are alone in the Universe.
 Jole Turbor
 Jaim Twer
Jaim Twer (Foundation) is one of the first outlanders to receive a Foundation education. Journeys with Hober Mallow, and campaigned for trader recognition on the Foundation council. However, during Hober Mallow's trial for leaving Jord Parma in the hands of the Korellians, it is revealed that Twer is in reality a priest and was put to spy on Hober Mallow and perhaps frame him. (Mallow realises this when Twer demonstrates ignorance about the Seldon Crisis.)
 Poly Verisof
 Prince Regent Wienis
Prince Regent Wienis (Foundation) The power behind the regency of Lepold I, Prince Regent Wienis attempted a military conquest of the Foundation, but is thwarted by the religion of Scientism, which gives the Foundation control of Anacreon's technology, including its military. Frustrated by Salvor Hardin, he despairs and commits suicide.
 See also
- Asimov, Isaac. Forward the Foundation. New York: Doubleday, 1993. pg. 405
- Asimov, Isaac. Foundation. Gnome Press. 1951.
- Asimov, Isaac. Foundation and Empire. Gnome Press. 1952.
- Asimov, Isaac. Second Foundation. Gnome Press. 1953
- Asimov, Isaac. Foundation's Edge. Doubleday. June 1982. ISBN 0-385-17725-9
- Asimov, Isaac. Foundation and Earth. Doubleday. 1986. ISBN 0-553-58757-9