| Name | Role/Job | Order of appearance | Options | |
|---|---|---|---|---|
| 1) | William Boyd | 1 | ||
| 2) | George 'Gabby' Hayes | 2 | ||
| 3) | Russell Hayden | 3 | ||
| 4) | Nora Lane | 4 | ||
| 5) | Harry Worth | 5 | ||
| 6) | William Duncan | 6 | ||
| 7) | Ernie Adams | 7 | ||
| 8) | Frank Ellis | 8 | ||
| 9) | John Beach | 9 | ||
| 10) | Leo J. McMahon | 10 | ||
| 11) | Artie Ortego | 11 | ||
| 12) | Blackjack Ward | 12 | ||
| 13) | Lois Wilde | 13 | ||
| 14) | Jack Rutherford | 14 | ||
| 15) | Ben Corbett | 15 |
| Name | Role/Job | Order of appearance | Options | |
|---|---|---|---|---|
| 1) | Clarence E. Mulford | 1 | ||
| 2) | Norman Houston | 2 |
| Name | Role/Job | Order of appearance | Options | |
|---|---|---|---|---|
| 1) | Lesley Selander | 1 |
| Name | Synopses | Official ? | Options |
|---|---|---|---|
| Salma El-Sharkawy | Hopalong Cassidy and his group come upon a strange professor while out on a cattle drive. While he claims to be looking for the missing piece in evolution, the professor is actually a cattle rustler who scatters the cattle with his explosives so he may catch some of them. 272 |
| Name | Review Content | Spoiler ? | Official ? | Options |
|---|