| Name | Character | Episodes |
|---|---|---|
| James Cameron | Self | 7 |
| Yu Hua | Self | 7 |
| Richard David Precht | Self | 6 |
| Richard Dawkins | Self | 5 |
| Peter Singer | Self | 5 |
| Slavoj Žižek | Self | 5 |
| Jane Goodall | Self | 4 |
| Daniel Barenboim | Self | 3 |
| Name | Character | Episodes |
|---|---|---|
| James Cameron | Self | 7 |
| Yu Hua | Self | 7 |
| Richard David Precht | Self | 6 |
| Richard Dawkins | Self | 5 |
| Peter Singer | Self | 5 |
| Slavoj Žižek | Self | 5 |
| Jane Goodall | Self | 4 |
| Daniel Barenboim | Self | 3 |