The story of the greatest physicists of the 20th century and the discoveries they made.
| Actor | Role |
|---|---|
 Michael PenningtonNarrator (Voice) | Narrator (Voice) |
 Albert EinsteinNot listed | Not listed |
| PPaul DiracNot listed | Not listed |
 Jocelyn Bell BurnellNot listed | Not listed |
 Stephen HawkingNot listed | Not listed |