| Jimmy Keegan | Henry Bigg |
| Bettina Bush | Lucy Little |
| Hal Smith | Uncle Augustus |
| Gregg Berger | William Little |
| Patricia Parris | Helen Little |
| Alvy Moore | Grandpa Little |
| Robert David Hall | Dinky Little |
| Mona Marshall | Mrs. Evans |
Mouselike humans who live in the walls of a house aid a boy whose parents have vanished.
|
|