Kevin McKidd Lucius Vorenus Actor Ray Stevenson Titus Pullo Actor Polly Walker Atia of the Juli Actor James Purefoy Mark Antony Actor Tobias Menzies Marcus Junius Brutus Actor Lindsay Duncan Servilia of the Junii Actor Max Pirkis Gaius Octavian Actor Kerry Condon Octavia of the Julii Actor Lyndsey Marshal Cleopatra Actor Zuleikha Robinson Gaia Actor Simon Woods Gaius Octavian Caesar Actor Indira Varma Niobe Guest Star David Bamber Marcus Tullius Cicero Guest Star Guy Henry Cassius Guest Star Allen Leech Marcus Vipsanius Agrippa Guest Star Suzanne Bertish Eleni Guest Star Rafi Gavron Duro Guest Star Chiara Mastalli Eirene Guest Star Esther Hall Lyde Guest Star Ian McNeice Newsreader Guest Star Camilla Rutherford Jocasta Guest Star Daniel Cerqueira Memmio Guest Star Nigel Lindsay Levi Guest Star Michael Nardone Mascius Guest Star Coral Amiga Vorena the Elder Guest Star Lee Boardman Timon Guest Star Manfredi Aliquo Castor Guest Star Nadia Baldi Mrs. Bubo Guest Star Lidia Biondi Merula Guest Star Bruno Bilotta Appius Guest Star Allan Corduner Clerk Guest Star Alessandro Cremona Pontic Dignitary Guest Star Emilio De Marchi Vizier Guest Star Giacomo Gonnella Carbo Guest Star Kevin Johnson Guard Guest Star Amy Marston Deborah Guest Star Clive Riche Tyro Guest Star Rebekah Staton Althea Guest Star Carlotta Montanari Beggar Guest Star Bruno Heller Executive Producer William J. Macdonald Executive Producer John Milius Executive Producer Anne Thomopoulos Executive Producer Frank Doelger Executive Producer Lucy Richer Executive Producer