Venus is a hellish alien world believed to be impossible to extraterrestrial life; but new discoveries reveal shocking evidence within its deadly atmosphere and on its strange surface, all pointing to a possible future for planet Earth.
| Name | Type | Role | |
|---|---|---|---|
| Anatoly Zak | Guest Star | ||
| Fran Bagenal | Guest Star | ||
| Larry Esposito | Guest Star | ||
| Manish Patel | Guest Star | ||
| Andrew Coates | Guest Star | ||
| Julie Webster | Guest Star | ||
| John Casani | Guest Star | ||
| Jonathon Aurnou | Guest Star | ||
| David Grinspoon | Guest Star | ||
| Olivier Witasse | Guest Star | ||
| Mark McCaughrean | Guest Star |