Season Two
Starring: | Shaun Cassidy .............................................. Joe Hardy |
| Parker Stevenson ......................................... Frank Hardy |
| Edmund Gilbert .......................................... Fenton Hardy |
| Based on the "Hardy Boys" books by Franklin W. Dixon |
| |
Starring: | Pamela Sue Martin ............................... Nancy Drew (15 - 27) |
| Janet Louise Johnson .............................. Nancy Drew (31 on) |
| Susan Buckner ........................................... George Fayne |
| William Schallert ........................................ Carson Drew |
| Based on the "Nancy Drew" books by Carolyn Keene |