Trees talk, know family ties and care for their young? Is this too fantastic to be true? German forester Peter Wohlleben and scientist Suzanne Simard have been observing and investigating the communication between trees over decades. And their findings are most astounding.
| Actor | Role |
|---|---|
| SSuzanne SimardSelf | Self |
 Peter WohllebenSelf | Self |
 Denise M'BayeNarrator (Voice) | Narrator (Voice) |
| TTeresa (Sm'hayetsk) RyanSelf | Self |
| MMonika A. GorzelakSelf | Self |
| AAmanda AsaySelf | Self |
| JJulia Amerongen MaddisonSelf | Self |