In the documentary about Olivér Halassy, the outstanding sports career of the legendary swimmer and water polo player is shown, and with the assistance of Olympic and Paralympic champions we also gain insight into the world of domestic water sports in the 20th and 21st century.
| Actor | Role |
|---|---|
| JJános BecseyNot listed | Not listed |
| TTibor BenedekNot listed | Not listed |
| AAntal BolvariNot listed | Not listed |
| PPál Dr. HencseiNot listed | Not listed |
| TTamás FaragóNot listed | Not listed |
| IIlona HalassyNot listed | Not listed |
 Olivér HalassyNot listed | Not listed |
| DDénes KeményNot listed | Not listed |
| GGergely KissNot listed | Not listed |
| GGyörgy KárpátiNot listed | Not listed |
| PPál SchmittNot listed | Not listed |
| TTamás SorsNot listed | Not listed |
| IIstván SzücsOlivér Halassy | Olivér Halassy |
| ZZsuzsa Imre TóváriNot listed | Not listed |
| TTamás VitrayNot listed | Not listed |