| William Sadler | Voice Only |
| Bill Raney | Participant |
| Bo Webb | Participant |
| Maria Gunnoe | Participant |
| Michael Shnayerson | Participant |
| Joe Lovett | Participant |
| Allen Hershkowitz | Participant |
| David Aaron Smith | Participant |
| Robert F. Kennedy Jr. | Participant |
| Jack Spadaro | Participant |
| Ben Stout | Participant |
| Ed Wiley | Participant |
| Gus Speth | Participant |
| Donetta Blankenship | Participant |
| Chuck Nelson | Participant |
| Lawrence Richmond | Participant |
| Antrim Caskey | Participant |
| Laura Von Dohlen | Participant |
| Nick Martin | Participant |
| Joshua Graupera | Participant |
| Amber Nitchman | Participant |
| Joe Manchin | Participant |
| Ron Burris | Participant |
| Devra Davis | Participant |
| Susan Bird | Participant |
| Lorelei Scarbro | |
| Brother Joseph Byron | Participant |
| Gary Gump | Participant |
| Lisa Jackson | Participant |
| Bill Haney | Director, Producer, Screenwriter |
| Clara Bingham | Producer |
| Tim Disney | Executive Producer |
| Andrew Farkas | Associate Producer |
| Randi Glass | Casting |
| Eric Grunebaum | Producer |
| Timothy Hotchner | Cinematographer |
| Debra Longo | Associate Producer |
| Laura Longsworth | Co-producer |
| Stephen McCarthy | Cinematographer |
| Greg McCleary | Sound Editor |
| Claudio Ragazzi | Score Composer |
| Sarah Johnson Redlich | Executive Producer |
| Peter Rhodes | Editor, Screenwriter |
| Jerry Risius | Cinematographer |
| Tim Rockwood | Executive Producer |
| Susan Shopmaker | Casting |
| Geof Thurber | Sound/Sound Designer |
Overview