The story of Buzz Aldrin, the second astronaut to walk on the moon, and the problems he had after his return to Earth, including the breakup of his marriage, a nervous breakdown and his hospitalization for psychiatric problems.
| Actor | Role |
|---|---|
 Cliff RobertsonCol. Edwin A. 'Buzz' Aldrin Jr. | Col. Edwin A. 'Buzz' Aldrin Jr. |
 Shirley KnightJoan Aldrin | Joan Aldrin |
 Charles CioffiDr. Sam Mayhill | Dr. Sam Mayhill |
 Ralph BellamyCol. Edwin E. Aldrin | Col. Edwin E. Aldrin |
 Stefanie PowersMarianne | Marianne |
| KKraig MetzingerAndy Aldrin | Andy Aldrin |
| TTony MarksMike Aldrin | Mike Aldrin |
 Stephen PearlmanDr. Hotfield | Dr. Hotfield |
 Stefan GieraschAl Davis | Al Davis |
 Mark RobertsNot listed | Not listed |
 Lance HenriksenNot listed | Not listed |
| CConard FowkesNot listed | Not listed |
 George D. WallaceNot listed | Not listed |
 Robert KarnesNot listed | Not listed |
 Davis RobertsNot listed | Not listed |
| SSandra de BruinNot listed | Not listed |
| AAnne Newman BacalNot listed | Not listed |
 Robert B. WilliamsNot listed | Not listed |
 Shelley MitchellNot listed | Not listed |
 Bob HarksNot listed | Not listed |