Characters in Part I + 

The Emperor Constantine + 

Gallicanus + 

Constance, + 

daughter of Constantine. + 

Artemia, + 

daughter of Gallicanus. + 

Attica, + 

daughter of Gallicanus. + 

John, + 

Grand Almoner to Constance. + 

Paul, + 

Grand Almoner to Constance. + 

Lords of the Court + 

Bradan, + 

King of the Scythians. + 

Tribunes + 

Roman soldiers + 

Scythian soldiers + 

Helena, + 

Mother of Constantine. + 