| Name | Character | Episodes |
|---|---|---|
| Peter Dinklage | Narrator | 6 |
| Adolf Hitler | Self (archive footage) | 3 |
| Kim Jong-il | Self (archive footage) | 3 |
| Joseph Stalin | Self (archive footage) | 2 |
| Muammar Gaddafi | Self (archive footage) | 2 |
| Kim Il-sung | Self (archive footage) | 2 |
| Barack Obama | Self (archive footage) | 1 |
| Fidel Castro | Self (archive footage) | 1 |
| Vladimir Putin | Self (archive footage) | 1 |
| George W. Bush | Self (archive footage) | 1 |
| Ban Ki-moon | Self (archive footage) | 1 |
| Idi Amin | Self (archive footage) | 1 |
| Kim Jong-un | Self (archive footage) | 1 |