Horizon interviews some experts and looks at the matters which can change our lives in the future, like: climate change, the future of transport, energy production, gene therapy, artificial intelligence, among other things.
| Actor | Role |
|---|---|
 Hannah FryNarrator | Narrator |
 Helen CzerskiSelf | Self |
 Kevin FongSelf | Self |
 Michael MosleySelf | Self |
| PPeter GibbsSelf | Self |
 Giles YeoSelf | Self |
| DDr Zoe WilliamsSelf | Self |
| JJames YoungSelf | Self |
 Dr Adam RutherfordSelf | Self |
| TTeena GadeSelf | Self |