| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Barbara Kronig | Crew | Costume & Make-Up | Costume Design | 12 |
Herbert Wise | Crew | Directing | Director | 12 |
Martin Lisemore | Crew | Production | Producer | 12 |
Tim Harvey | Crew | Art | Production Design | 12 |
Wilfred Josephs | Crew | Sound | Original Music Composer | 12 |
Robert Graves | Crew | Writing | Novel, Original Story | 12 |
Jack Pulman | Crew | Writing | Writer | 12 |
 Aubrey Richards | Cast | Actor | 1 | |
 Bernard Hepton | Cast | Actor | Pallas | 12 |
 Bernard Hill | Cast | Actor | Gratus | 2 |
 Beth Morris | Cast | Actress | 1 | |
 Brian Blessed | Cast | Actor | Augustus | 12 |
 Bruce Purchase | Cast | Actor | 1 | |
 Charles Kay | Cast | Actor | 1 | |
 Christopher Biggins | Cast | Actor | Nero | 12 |
 Christopher Guard | Cast | Actor | Marcellus | 1 |
 Danny Schiller | Cast | Actor | 1 | |
Darien Angadi | Cast | Actor | 1 | |
 David Robb | Cast | Actor | Germanicus | 12 |
 Derek Jacobi | Cast | Actor | Self | 1 |
Earl Rhodes | Cast | 1 | ||
 Esmond Knight | Cast | Actor | 1 | |
 Fiona Walker | Cast | Actress | Agrippina | 12 |
Frances White | Cast | Actress | Julia | 12 |
Freda Dowie | Cast | Actress | 2 | |
Geoffrey Hinsliff | Cast | Actor | 1 | |
 George Baker | Cast | Actor | 8 | |
 George Pravda | Cast | Actor | 1 | |
 Guy Siner | Cast | Actor | 1 | |
 Ian Ogilvy | Cast | Actor | Drusus | 12 |
 James Faulkner | Cast | Actor | Herod Agrippa | 12 |
 John Bennett | Cast | Actor | 1 | |
 John Burgess | Cast | Actor | Julia's Lover | 1 |
 John Castle | Cast | Actor | Postumus | 2 |
 John Cater | Cast | Actor | Narcissus | 12 |
 John Franklyn-Robbins | Cast | Actor | 1 | |
 John Hurt | Cast | Actor | Caligula | 12 |
John Paul | Cast | Actor | Marcus Vipsanius Agrippa | 12 |
 John Rhys-Davies | Cast | Actor | Naevius Sutorius Macro | 12 |
 John Scott Martin | Cast | Actor | 1 | |
 Kevin McNally | Cast | Actor | Castor | 12 |
 Kevin Stoney | Cast | Actor | 3 | |
Liane Aukin | Cast | Actress | 1 | |
 Linal Haft | Cast | Actor | 1 | |
 Lockwood West | Cast | Actor | 2 | |
 Lyndon Brook | Cast | Actor | 1 | |
 Margaret Tyzack | Cast | Actress | Antonia | 12 |
 Moira Redmond | Cast | Actress | 2 | |
 Norman Eshley | Cast | Actor | 2 | |
 Norman Rossington | Cast | Actor | 1 | |
 Patricia Quinn | Cast | Actress | Livilla | 4 |
 Patrick Stewart | Cast | Actor | Sejanus | 12 |
Richard Hunter | Cast | Actor | 1 | |
 Roy Stewart | Cast | Actor | 1 | |
 Sally Bazely | Cast | Actress | 1 | |
 Sheila White | Cast | Actress | Messalina | 12 |
 Simon MacCorkindale | Cast | Actor | 1 | |
 Siân Phillips | Cast | Actress | Livia Drusilla | 12 |
 Souad Faress | Cast | Actress | 2 | |
 Stratford Johns | Cast | Actor | 1 | |
 Stuart Wilson | Cast | Actor | 1 | |
 Tony Haygarth | Cast | Actor | 1 | |
Norman Shelley | Cast | Actor | 1 | |
 Robert Craig-Morgan | Cast | Actor | Caligula (Young) | 1 |
 Jo Rowbottom | Cast | Actress | 2 | |
 Patsy Byrne | Cast | Actress | 1 | |
 Richard Aylen | Cast | 1 | ||
Karin Foley | Cast | Actress | 2 | |
 Edward Jewesbury | Cast | Actor | 1 | |
| Person | Type | Job | Role(s) | Episodes |
