Characters played by Fredric March
Marcus Superbus
Prefect of Rome
Characters played by Elissa Landi
Mercia
Characters played by Claudette Colbert
Empress Poppaea
Characters played by Charles Laughton
Emperor Nero Claudius Caesar
Characters played by Ian Keith
Tigellinus
Characters played by Arthur Hohl
Titus
Characters played by Harry Beresford
Favius Fontelas
Characters played by Tommy Conlon
Stephan
Characters played by Ferdinand Gottschalk
Glabrio
Characters played by Vivian Tobin
Dacia
Characters played by William V. Mong
Licinius
Old Man Carrying Child
Characters played by Joyzelle Joyner
Ancaria
Characters played by Richard Alexander
Viturius
Characters played by Nat Pendleton
Strabo
Characters played by Clarence Burton
Servillius