The following is a list of the speakers found in the dialogues traditionally ascribed to Plato, including extensively quoted, indirect and conjured speakers. Dialogues, as well as Platonic Epistles and Epigrams, in which these individuals appear dramatically but do not speak are listed separately.
List Name Speaker Mentioned Adeimantus of Collytus, son of Ariston Parmenides, Republic Apology Agathon of Athens, son of Tisamenus SymposiumProtagoras; Epigram 6 Alcibiades of Scambonidae, son of Clinias Alcibiades, II Alcibiades, Protagoras, SymposiumEuthydemus, Gorgias Antiphon of Athens, son of Pyrilampes Parmenides Anytus of Euonymon, son of Anthemion Meno Apology Apollodorus of Phalerum Symposium Apology, Phaedo Aristides of Alopece, son of Lysimachus Laches, Theages Theaetetus Aristodemus of Cydathenaeum Symposium Aristophanes of Cydathenaeum, son of Philippus Symposium Apology; Epigram 18 Aristotle of Thorae, son of Timocrates Parmenides Aspasia of Miletus, daughter of Axiochus Menexenus Axiochus of Scambonidae, son of Alcibiades Axiochus Euthydemus Callias of Alopece, son of Hipponicus Apology, Protagoras Axiochus, Cratylus, Eryxias, Philebus, Protagoras, Theaetetus Callicles of Acharnae Gorgias Cebes of Thebes PhaedoCrito; Epistle XIII Cephalus of Clazomenae Parmenides Cephalus of Syracuse, son of Lysanias Republic Phaedrus Chaerephon of Sphettus Charmides, Gorgias, Halcyon Apology Charmides of Athens, son of Glaucon Charmides, TheagesAxiochus, Protagoras, Symposium Clinias of Cnossos Epinomis, Laws Clinias of Scambonidae, son of AxiochusA small minority of manuscript traditions name Clinias as the anonymous speaker in On Justice: D. S. Hutchinson in Cooper, p. 1689. Axiochus, Euthydemus Clitophon of Athens, son of Aristonymus Clitophon, Republic Cratylus of Athens, son of Smicrion Cratylus Critias of Athens, son of CallaeschrusScholars are divided as to whether the Critias depicted in the Timaeus and Critias dialogues is the future member of the Thirty Tyrants who appears elsewhere in Plato's writing (Critias IV), or rather his grandfather (Critias III): Nails, 106–7. Charmides, Protagoras Eryxias Critias of Athens, son of Leaides Critias, Timaeus Crito of Alopece Crito, Euthydemus, Phaedo Apology Ctesippus of Paeania Euthydemus, Lysis Phaedo Demodocus of Anagyrus Theages Apology, Demodocus Dionysodorus of Chios and Thurii Euthydemus Diotima of Mantinea Symposium Echecrates of Phlius Phaedo Erasistratus of Athens Eryxias Eryxias of Steiria Eryxias Eryximachus of Athens, son of Acumenus Symposium Phaedrus, Protagoras Euclides of Megara Theaetetus Phaedo Eudicus of Athens, son of Apemantus (Lesser) Hippias (Greater) Hippias Euthydemus of Chios and Thurii Euthydemus Cratylus Euthyphro of Prospalta Euthyphro Cratylus Glaucon of Collytus, son of Ariston Parmenides, Republic, SymposiumNot all scholars are convinced that the Glaucon mentioned in Symposium is Plato's brother. Gorgias of Leontini, son of Charmantides Gorgias Apology, (Greater) Hippias, Meno, Phaedrus, Philebus, Symposium, Theages Hermocrates of Syracuse, son of Hermon Critias, Timaeus Hermogenes of Alopece, son of Hipponicus Cratylus Phaedo Hippias of Elis, son of Diopeithes (Greater) Hippias, (Lesser) Hippias, Protagoras Apology, Phaedrus, Protagoras Hippocrates of Athens, son of Apollodorus Protagoras Hippothales of Athens, son of Hieronymus Lysis Ion of Ephesus Ion Laches of Aexone, son of Melanopus Laches Symposium Lysias of Thurii and Athens, son of Cephalus Phaedrus Clitophon, Phaedrus, Republic Lysimachus of Alopece, son of Aristides Laches Meno, On Virtue, Theaetetus, Theages Lysis of Aexone, son of Democrates Lysis Megillus of Sparta Laws Epinomis Melesias of Alopece, son of Thucydides Laches Meno, On Virtue, Theages Meletus of Pithus, son of Meletus Apology Euthyphro, Theaetetus Menexenus of Athens, son of Demophon Lysis, Menexenus Phaedo Meno of Pharsalus, son of AlexidemusA small minority of manuscript traditions name either Meno or the otherwise unknown Hippotrophus as the anonymous speaker in On Virtue: D. S. Hutchinson in Cooper, p. 1694. Meno Nicias of Cydantidae, son of Niceratus Laches Gorgias, Republic, Theages Parmenides of Elea, son of Pyres Parmenides Sophist, Symposium, Theaetetus Pausanias of Cerameis Symposium Protagoras Phaedo of Elis Phaedo Phaedrus of Myrrhinus, son of Pythocles Phaedrus, Symposium Protagoras; Epigram 4 Philebus Philebus Polemarchus of Thurii, son of Cephalus Republic Phaedrus Polus of Acragas Gorgias Phaedrus, Theages Prodicus of Ceos Eryxias, Protagoras Apology, Axiochus, Charmides, Cratylus, Eryxias, Euthydemus, (Greater) Hippias, Laches, Phaedrus, Protagoras, Republic, Symposium, Theaetetus, Theages Protagoras of Abdera Protagoras, Theaetetus Cratylus, Euthydemus, (Greater) Hippias, Laws, Phaedrus, Republic, Sophist, Theaetetus Protarchus of Athens, son of Callias Philebus Pythodorus of Athens, son of Isolochus Parmenides Alcibiades Simmias of Thebes Phaedo Crito, Phaedrus; Epistle XIII Sisyphus of PharsalusSisyphus of Pharsalus lived in the time of Plato, and thus is to be distinguished from the Sisyphus of Corinth in mythology: Cooper, p. 1707. Sisyphus Socrates of Alopece, son of Sophroniscus Dialogues of Plato Epistles II, VII, XIII Socrates of Athens Statesman Sophist, Theaetetus; Epistle XIThe identity of the Socrates named in Epistle XI is unknown, but is considered by some scholars to be that of the young Socrates of the Statesman trilogy: Cooper, p. 1672. Terpsion of Megara Theaetetus Phaedo Theaetetus of Sunium, son of Euphronius Sophist, Theaetetus Statesman Theages of Anagyrus, son of Demodocus Theages Apology, Republic Theodorus of Cyrene Sophist, Statesman, Theaetetus Thrasymachus of Chalcedon Republic Clitophon, Phaedrus Thucydides of Alopece, son of Melesias Laches Theages Timaeus of Epizephyrian Locris Critias, Timaeus Timarchus Theages Xanthippe, wife of Socrates of Alopece Phaedo Halcyon; Epigram 8Scholars are unsure as to whether Epigram 8 is intended to reference Socrates' wife Xanthippe or another individual by the same name: Cooper, p. 1742. Zeno of Elea Parmenides Alcibiades, Sophist
Unnamed speakers Name Mentioned Callias' slave Protagoras Euclides' slave Theaetetus Meno's slave of Pharsalus Meno Polemarchus' slave Republic Public slave Phaedo Stranger from Athens Epinomis, Laws Stranger from Elea Sophist, Statesman Unnamed friends Eryxias, Hipparchus, Minos, On Justice, On Virtue, Protagoras, Rival Lovers, Symposium
Notes
Bibliography Debra Nails. The People of Plato: A Prosopography of Plato and Other Socratics. Hackett Publishing, 2002. . Plato. Complete Works. Ed: John M. Cooper. Hackett Publishing, 1997.