| Character | Actor |
| Jim Garrison | |
| Lou Ivon | |
| Guy Bannister | |
| Jack Martin | |
| Liz Garrison | |
| Lee Harvey Oswald | |
| Jack ruby | |
| Numa Bertel | |
| Bill Broussard | |
| Bill Newman | |
| | Character | Actor |
| Susie Cox | |
| David Ferrie | |
| Senator Huey Long | |
| Clay Shaw | |
| Dean Andrews | |
| Willie O'Keefe | |
| X | |
| Jerry Johnson | |
| Narrator | |
| Earl Warren | |
|