James Faulkner
Herod Agrippa (18 eps)
Margaret Tyzack
Antonia (18 eps)
Brian Blessed
Augustus (17 eps)
Fiona Walker
Agrippina (16 eps)
Kevin McNally
Castor (16 eps)
John Hurt
Caligula (16 eps)
Sheila White
Messalina (15 eps)
Frances White
Julia (15 eps)
David Robb
Germanicus (15 eps)
John Rhys-Davies
Naevius Sutorius Macro (14 eps)
John Cater
Narcissus (14 eps)
Bernard Hepton
Pallas (14 eps)
John Paul
Marcus Vipsanius Agrippa (13 eps)
Ian Ogilvy
Drusus (13 eps)
Siân Phillips
Livia Drusilla (13 eps)
Derek Jacobi
Claudius (12 eps)
Patrick Stewart
Sejanus (12 eps)
Christopher Biggins
Nero (12 eps)
Patricia Quinn
Livilla (4 eps)
John Castle
Postumus (2 eps)
Bernard Hill
Gratus (2 eps)
Christopher Guard
Marcellus (1 eps)
John Burgess
Julia's Lover (1 eps)
Robert Morgan
Caligula (Young) (1 eps)