Josh is a young boy who feels neglected and misunderstood at home. Preparing to run away, he chances across an old diary once kept by his grandfather. Leafing through the yellowed pages, Josh discovers that Grandpa went through many of the same childhood travails that he is enduring at that moment. Armed with a renewed understanding of and appreciation for his elders, Josh decides to stick around for a while and see how things develop.
| Actor | Role |
|---|---|
 Bobby DriscollJosh / Danny Reed | Josh / Danny Reed |
 Robert PrestonFather Reed | Father Reed |
 Martha ScottMother Reed | Mother Reed |
 Sherry JacksonRuthie Reed | Ruthie Reed |
 John WilderDuckface Kelly | Duckface Kelly |
 Frances ChaneyMrs. Kelly | Mrs. Kelly |
 Poodles HannefordBobo | Bobo |
 Ralph DumkeCarp | Carp |
 Paul GuilfoyleDoc | Doc |
| PPaul LevittCarp's Assistant | Carp's Assistant |
 Griff BarnettDr. Bailey | Dr. Bailey |
| MMargaret LloydVolunteer Nurse | Volunteer Nurse |
 Charley GrapewinGrandpa Reed | Grandpa Reed |
 Harry MorganFather Reed (Modern) | Father Reed (Modern) |
 Elisabeth FraserMother Reed | Mother Reed |
 Robert HyattBinks | Binks |
 Hamilton CampBully | Bully |
 Ruth LeeBully's Mother | Bully's Mother |
| DDonald GordonHarmonica Boy | Harmonica Boy |
| RRobert GordonBoy with Water Trough | Boy with Water Trough |