William Shatner sits down with scientists, innovators and celebrities to discuss how the optimism of 'Star Trek' influenced multiple generations.
| Actor | Role |
|---|---|
 William ShatnerSelf | Self |
 Neil deGrasse TysonSelf | Self |
 Chris HadfieldSelf | Self |
 Whoopi GoldbergSelf | Self |
 Stephen HawkingSelf | Self |
 Jason AlexanderSelf | Self |
 Seth MacFarlaneSelf | Self |
 David SuzukiSelf | Self |
 Ben StillerSelf | Self |
 Michio KakuSelf | Self |