| Cast list |
| Jesse McCartney | as | Frank Hardy (voice) |
| Blythe Auffarth | as | Lilly /Nancy Drew (voice) |
| Leigh Allyn Baker | as | Laura Hardy / Ellen (voice) |
| Jon Curry | as | Harold / Fenton / Edward (voice) |
| Jennifer Darling | as | Mary / Aunt Trudy (voice) |
| Pat Fraley | as | Thomas / Orin / TV Voice (voice) |
| Joe Hanna | as | Ezra / Sammuel (voice) |
| Matt Levin | as | Chet / Phil / Eric (voice) |
| Cody Linley | as | Joe Hardy (voice) |
| David Lodge | as | Parrot (voice) |
| Nolan North | as | Gus / Dougal / Con (voice) |
| Kelly Stables | as | Iola (voice) |
