Tom Rosenthal Marcus Actor Tom Basden Aurelius Actor, Writer Ryan Sampson Grumio Actor Ellie Taylor Gloria Actor Tamla Kari Calypso Actor Nigel Lindsay Atlas Actor William Andrews Petronius Actor Paola Dionisotti Nanna Actor Amanda Holden Rufina Actor Joe Sims Vulcan Actor Pippa Haywood Antonia Actor Ray Fearon Magnus Actor Jude Akuwudike Agrippa Actor Jon Pointing Jason Actor Geoffrey Beevers Phoenix Actor Christopher Biggins Actor Fenella Woolgar Actor Maureen Lipman Actor Maisie Leifer Schoolgirl Actor Karl Theobald Actor Sam Leifer Writer, Director, Executive Producer Oli Julian Original Music Nick Foster Original Music Caroline Leddy Executive Producer Teddy Leifer Producer