Gabriel Syme

Lucian Gregory

Syme and Gregory are ideological enemies who engage in a philosophical duel over anarchism and order, with Gregory challenging Syme's worldview.

Professor de Worms

Syme and de Worms are fellow undercover detectives in the anti-anarchist council, working together despite initial suspicion.

Sunday

Sunday is a mysterious and manipulative figure who orchestrates the entire plot, leaving Syme in a state of awe, fear, and obsession.

Marquis de St. Eustache

Syme and the Marquis are fellow detectives in disguise, cooperating in the pursuit of the anarchist council.

Gogol

Syme and Gogol are colleagues in the secret police force, working together to infiltrate the anarchist council.

Dr. Bull

Dr. Bull and Syme are fellow detectives, sharing a bond of camaraderie and mutual support in their dangerous mission.

Colonel Ducroix

Colonel Ducroix is a French police official who assists Syme and coordinates the international detective effort.

The Secretary

Syme and the Secretary are both detectives working undercover, with the Secretary acting as a key ally in the council.

Dr. Renard

Dr. Renard is a French detective who assists Syme in the investigation, providing local expertise.

Inspector Ratcliffe

Syme and Inspector Ratcliffe are colleagues in the police force, working together on the case.

Lucian Gregory

Syme and Gregory are ideological enemies who engage in a philosophical duel over anarchism and order, with Gregory challenging Syme's worldview.

Professor de Worms

Syme and de Worms are fellow undercover detectives in the anti-anarchist council, working together despite initial suspicion.

The Man Who Was Thursday: A Nightmare

Introduced as a poet who champions order and law, engaging in a heated philosophical debate with Gregory.

The Two Poets of Saffron Park

The new poet of Saffron Park, a mild-looking man with a fair pointed beard who defends order and respectability; he accepts Gregory's challenge and swears secrecy.

The Secret of Gabriel Syme

Reveals himself as a police detective to Gregory.

The Man Who Was Thursday

Reveals his identity as a policeman to Gregory, then boldly infiltrates the anarchist council by claiming to be a Sabbatarian envoy. Delivers a fierce speech advocating for violent anarchy and is elected Thursday.

IV: The Tale of a Detective

Revealed as a poet-turned-detective who rebelled against his family's radicalism and was traumatized by a dynamite explosion; recruited into the philosophical police force.

The Feast of Fear

Syme experiences intense psychological fear as he approaches President Sunday, recalling childhood terror of large faces. He joins the council's breakfast, fighting to maintain composure.

VI: The Exposure

Torn by moral indecision and fear, Syme considers betraying his vow to the anarchists but ultimately finds courage in his commitment to common humanity and honor.

VII: The Unaccountable Conduct of Professor de Worms

Syme is shaken by Sunday's cryptic warning and becomes paranoid as he tries to evade the Professor, who seems to follow him with supernatural persistence.

The Man in Spectacles

Syme feels a cold sanity in the new adventure; he improvises a story about a detective and has a poetic intuition leading him to challenge Dr. Bull.

X: The Duel

Syme is in a state of curious hilarity, drinking Saumur and composing a mock catechism. He challenges the Marquis to a duel, fights with intellectual fury, and experiences supernatural terror when his sword fails to wound. He resolves to die as a champion of humanity.

XI: The Criminals Chase the Police

Experiences a crisis of perception and identity in the forest, questioning whether anything is real; leads the group's flight and engages in debate about the nature of anarchy.

XII: The Earth in Anarchy

Leads the group onto the jetty, brandishes swords and a lantern, and delivers a defiant speech before the Secretary's revelation.

The Pursuit of the President

Leads the pursuit of Sunday after the balcony confrontation; practical and determined.

The Six Philosophers

Syme leads the group, shares his profound vision of Sunday as both a beast from behind and a god from the front, and articulates the central mystery of the world.

XV: The Accuser

Syme defends the detectives against Gregory's accusation, declaring they have suffered and descended into hell. He confronts Sunday about suffering and then blacks out, later awakening walking with Gregory at dawn.