Full cast of I, Claudius

Derek Jacobi

Claudius

12 episodes

George Baker

Tiberius

9 episodes

Margaret Tyzack

Antonia

8 episodes

Siân Phillips

Livia

7 episodes

James Faulkner

Herod Agrippa

6 episodes

Brian Blessed

Augustus

5 episodes

John Hurt

Caligula

5 episodes

Fiona Walker

Agrippina

4 episodes

Kevin McNally

Castor

4 episodes

Patrick Stewart

Sejanus

4 episodes

Patricia Quinn

Livilla

4 episodes

Bernard Hepton

Pallas

3 episodes

Sheila White

Messalina

3 episodes

John Cater

Narcissus

3 episodes

David Robb

Germanicus

3 episodes

Kevin Stoney

Thrasyllus

3 episodes

Freda Dowie

The Sibyl / Caesonia

3 episodes

Frances White

Julia

2 episodes

Jo Rowbottom

Calpurnia

2 episodes

Moira Redmond

Domitia

2 episodes

Sam Dastor

Cassius Chaerea

2 episodes

Norman Eshley

Marcus Vinicius

2 episodes

John Rhys-Davies

Macro

2 episodes

John Castle

Postumus

2 episodes

Anne Dyson

Briseis

2 episodes

Bernard Hill

Gratus

2 episodes

Lockwood West

Senator

2 episodes

Michael Segal

Quaestor

2 episodes

James Fagan

Asprenas

2 episodes

Ian Ogilvy

Drusus

1 episode

Renu Setna

Musa

1 episode

Sheila Ruskin

Vipsania

1 episode

Michael Hawkins

Rufus

1 episode

Christopher Guard

Marcellus

1 episode

John Paul

Agrippa

1 episode

Angela Morant

Octavia

1 episode

Carleton Hobbs

Aristarchus

1 episode

Guy Siner

Pylades

1 episode

Earl Rhodes

Gaius

1 episode

Patrick Drury

Courier

1 episode

Simon MacCorkindale

Lucius

1 episode

Katharine Levy

Livilla

1 episode

Esmond Knight

Domitius

1 episode

Michael Clements

Herod

1 episode

Diane Hutchinson

Agrippina

1 episode

Nicholas Willatt

Courier

1 episode

Gary Lock

Germanicus

1 episode

Norman Shelley

Horace

1 episode

Donald Eccles

Pollio

1 episode

Denis Carey

Livy

1 episode

Carol Gillies

Camilla

1 episode

Jonathan Burn

Fabius

1 episode

James Bree

Montanus

1 episode

Graham Rowe

Junius

1 episode

Stratford Johns

Piso

1 episode

Irene Hamilton

Plancina

1 episode

Roy Purcell

Vitellius

1 episode

George Pravda

Gershom

1 episode

Patsy Byrne

Martina

1 episode

Robert Craig-Morgan

Caligula

1 episode

Isabel Dean

Lollia

1 episode

Edward Jewesbury

Titus

1 episode

Liane Aukin

Aelia

1 episode

Charles Kay

Gallus

1 episode

Kate Lansbury

Apicata

1 episode

John Franklyn-Robbins

Atticus

1 episode

Alfonso Di Lieto

Junius

1 episode

Katherine Hughes

Arria

1 episode

Karin Foley

Helen

1 episode

Pat Gorman

Captain of the Guard

1 episode

Jon Laurimore

Lentulus

1 episode

Douglas Melbourne

Gemellus

1 episode

Arthur Whybrow

Stonemason

1 episode

Bruce Purchase

Sabinus

1 episode

Norman Rossington

Sergeant

1 episode

Sally Bazely

Poppaea

1 episode

Gina Manicom

Iris

1 episode

Jan Carey

Diana

1 episode

Lyndon Brook

Silanus

1 episode

John Bennett

Xenophon

1 episode

Geoffrey Hinsliff

Rufrius

1 episode

Neal Arden

Cestius

1 episode

George Little

Tortius

1 episode

Stuart Wilson

Silius

1 episode

Nicholas Amer

Mnester

1 episode

Manning Wilson

Marsus Vibius

1 episode

George Innes

Quintus Justus

1 episode

Linal Haft

Geta

1 episode

Charlotte Howard

Scylla

1 episode

Barbara Young

Agrippinilla

1 episode

Graham Seed

Britannicus

1 episode

Peter Bowles

Caractacus

1 episode

Jim Carter

Roman Senate Senator (uncredited)

1 episode