| Episode credited cast: |
 | Jack Fortune | - | Himself - Narrator (voice) |
| Rest of cast listed alphabetically: |
| Jim Adovasio | - | Himself (as Dr. Jim Adovasio) |
| Joallyn Archambault | - | Herself (as Dr. Joallyn Archambault) |
| Bruce Bradley | - | Himself (as Dr. Bruce Bradley) |
| Ronald Brower | - | Himself |
| Michael Collins | - | Himself (as Dr. Michael Collins) |
| Paul Martin | - | Himself (as Dr. Paul Martin) |
| Dennis Stanford | - | Himself (as Dr. Dennis Stanford) |
| Lawrence Guy Strauss | - | Himself (as Dr. Lawrence Guy Strauss) |
| Douglas Wallace | - | Himself (as Dr. Douglas Wallace) |
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