She was once as famous as Jackie O—and then she tried to take down a President. Martha Mitchell was the unlikeliest of whistleblowers: a Republican wife who was discredited by Nixon to keep her quiet. Until now.
| Actor | Role |
|---|---|
 Martha MitchellSelf (archive footage) | Self (archive footage) |
 Richard NixonSelf (archive footage) | Self (archive footage) |
 Connie ChungSelf (voice) | Self (voice) |
| DDwight L. ChapinSelf (voice) | Self (voice) |
| PPiper DankworthSelf (voice) | Self (voice) |
| JJohn DeanSelf (voice) | Self (voice) |
| DDan Romaine KirkhamSelf (voice) | Self (voice) |
| SSally QuinnSelf (voice) | Self (voice) |
 Bob WoodwardSelf (voice) | Self (voice) |
 David FrostSelf (archive footage) | Self (archive footage) |
| JJ. William FulbrightSelf (archive footage) | Self (archive footage) |
 George McGovernSelf (archive footage) | Self (archive footage) |
| BBonnie AngeloSelf (archive footage) | Self (archive footage) |
| JJohn MitchellSelf (archive footage) | Self (archive footage) |
 Walter CronkiteSelf (archive footage) | Self (archive footage) |
 Lily TomlinSelf (archive footage) (uncredited) | Self (archive footage) (uncredited) |