The Hardy Boys: The Mystery of the Applegate Treasure The Tower's Secret (1956– ) Online
- Original Title :
- The Toweru0027s Secret
- Genre :
- TV Episode / Family / Mystery
- Year :
- 1956–
- Cast :
- Tim Considine,Tommy Kirk,Carole Ann Campbell
- Writer :
- Jackson Gillis,Edward Stratemeyer
- Type :
- TV Episode
- Rating :
- 8.8/10
| Episode credited cast: | |||
 | Tim Considine | - | Frank Hardy |
 | Tommy Kirk | - | Joe Hardy |
 | Carole Ann Campbell | - | Iola Morton |
 | Russ Conway | - | Fenton Hardy |
| Sarah Selby | - | Aunt Gertrude |
 | Florenz Ames | - | Silas Applegate |
 | Robert Foulk | - | Jackley the Plumber |
 | Donald MacDonald | - | Perry Robinson |
 | Arthur Shields | - | Boles - Ex-Gardener |
| Charles Cane | - | Police Sergeant |
| Brick Sullivan | - | Policeman |
| Rest of cast listed alphabetically: | |||
 | Mort Mills | - | Policeman |