The short film "L'Ottimista Sorridente" was Luis Sergio Person's graduation work when he was studying directing between 1961 and 1963 at the Centro Sperimentale di Cinematografia in Rome, Italy.
| Actor | Role |
|---|---|
| SSandro BertossaNot listed | Not listed |
| WWilliam DelviscoNot listed | Not listed |
| MMarline BregsteinNot listed | Not listed |
 Giovanni Ivan ScratugliaNot listed | Not listed |