| Actor | Role |
|---|---|
 Giorgio AlbertazziPhilo Vance | Philo Vance |
 Mico CundariChester Greene | Chester Greene |
 Micaela EsdraAda Greene | Ada Greene |
 Anna Maria GherardiSibilla Greene | Sibilla Greene |
 Elena ZareschiMrs. Greene | Mrs. Greene |
 Sergio RossiMarkham | Markham |
 Marco TulliSproot | Sproot |
 Mario AvogadroRex Greene | Rex Greene |
 Silvio AnselmoHeath | Heath |
| VVaro SoleriCurrie | Currie |
| NNais LagoMs. Hemming | Ms. Hemming |
 Andrea LalaDr. Von Bloon | Dr. Von Bloon |
 Tino BianchiMr. Ross | Mr. Ross |
| RRenata BernardiniAlice Barton | Alice Barton |
| GGino NelintiMr. Snitkin | Mr. Snitkin |
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