I, Claudius characters

Appears from the start

A member of Rome's ruling family who presents the book as his secret autobiography. Born with a limp, a stammer, and recurrent illness, he is dismissed by his relatives as incapable of public life. He is observant, drawn to history, and aware that being underestimated may protect him in a dangerous household.

Also known as Caesar Augustus

Appears from the start

Rome's first emperor and Claudius's great-uncle. Publicly he maintains many republican forms while holding supreme authority. Within the family he is affectionate, vain, politically shrewd, and deeply concerned with arranging a stable succession.

Appears from the start

The wife of Augustus, mother of Tiberius and Drusus, and grandmother of Claudius. Controlled, industrious, and exceptionally skilled at court politics, she presents herself as the guardian of household discipline and the imperial family's interests.

Appears from the start

Livia's elder son and Claudius's uncle. A successful soldier forced into dynastic marriages and responsibilities by Augustus, he is reserved, suspicious of court display, and uncomfortable with the personal demands placed on him by the imperial household.

Also known as Drusus

First appears in chapter 2

Claudius's father, the younger son of Livia and a gifted Roman commander. He is popular with his troops and privately favors restoring genuine authority to the Senate, a political hope that makes his position within the new imperial order unusually delicate.

First appears in chapter 2

Claudius's mother and the daughter of Mark Antony and Octavia. Proud of Roman military virtues, she preserves her late husband's standards and judges her sickly younger son harshly because she sees his disabilities as weakness.

First appears in chapter 3

Claudius's admired elder brother, an energetic and charismatic member of the imperial family. He has the public confidence and military promise that Claudius lacks, while treating his younger brother with a warmth rare in their household.

Also known as Julia the Elder

First appears in chapter 4

The daughter of Augustus and a central figure in his succession plans. Her marriages are arranged to connect the emperor's chosen heirs to his bloodline, leaving her private life repeatedly subordinated to dynastic policy.

First appears in chapter 4

Claudius's sister and the wife of Tiberius's son Drusus. Beautiful and conscious of her standing within the ruling family, she shares her mother's contempt for Claudius and is closely placed among the next generation of possible rulers.

First appears in chapter 6

The youngest son of Marcus Agrippa and Julia and therefore a grandson of Augustus. Rough-mannered and politically isolated, he becomes Claudius's friend despite the court's growing hostility toward him and remains an important alternative in the imperial succession.

First appears in chapter 10

A woman from an old Roman family selected as Claudius's wife. Large, physically confident, and uninterested in the historical studies that absorb him, she enters the marriage through the arrangements of more powerful relatives rather than through affection.

Also known as Castor

First appears in chapter 17

The son of Tiberius and husband of Livilla. Commonly called Castor within the family, he is the emperor's natural dynastic successor after Germanicus and has a forceful temper that brings him into conflict with ambitious men around the throne.

First appears in chapter 17

The commander of the Praetorian Guard and Tiberius's increasingly trusted deputy. Of equestrian rather than senatorial rank, he builds influence through administrative usefulness and control of the armed force stationed nearest to Rome.

Also known as Gaius

First appears in chapter 21

The youngest surviving son of Germanicus and Agrippina, nicknamed Caligula from the little military boots he wore among his father's soldiers. As a child of the empire's most popular prince, he attracts public affection as well as dangerous dynastic attention.

First appears in chapter 30

A very young woman whom Claudius marries late in Caligula's reign. Beautiful, socially ambitious, and much more at ease with court life than her husband, she enters a household whose apparent insignificance offers some shelter from imperial suspicion.

First appears in chapter 33

An officer of the Praetorian Guard repeatedly subjected to Caligula's personal mockery. His military position gives him access to the emperor, while accumulated humiliation makes his outward obedience increasingly strained.