Bill Maher and his guests – Richard Dawkins, Angela Rye, Adam Gopnik, Matt Welch and Dr. Neil deGrasse Tyson – answer viewer questions after the show.
| Name | Type | Role | |
|---|---|---|---|
| Neil deGrasse Tyson | Guest Star | ||
| Richard Dawkins | Guest Star | ||
| Angela Rye | Guest Star | ||
| Adam Gopnik | Guest Star | ||
| Matt Welch | Guest Star |