Galileo, an eminent professor and scientist in the 17th century Venetian Republic, is short of money. A prospective student tells him about a novel invention, the telescope, that is being sold in Amsterdam.
| Actor | Role |
|---|---|
 Peter BroccoOld Cardinal | Old Cardinal |
| SStephen BrownStreet Singer | Street Singer |
 Hugo HaasCardinal Barberini (Later Pope Urban VIII) | Cardinal Barberini (Later Pope Urban VIII) |
| FFrances HeflinVirginia Galilei | Virginia Galilei |
 Charles LaughtonGalileo Galilei | Galileo Galilei |
 Eda Reiss MerinMrs. Sarti | Mrs. Sarti |
 William PhippsAndrea Sarti | Andrea Sarti |