Fred overhears Wilma on the phone mentioning "a little stranger" who will shortly be visiting the household. Assuming that Wilma is pregnant, Fred summon his dreaded mother-in-law. But the "little stranger" turns out to be Arnold the paperboy.
| Name | Type | Role | |
|---|---|---|---|
| Herbert Finn | Writer | ||
| Bea Benaderet | Guest Star | ||
| Don Messick | Guest Star | ||
| Verna Felton | Guest Star | ||
| Mel Blanc | Guest Star | ||
| William Hanna | Director | ||
| Joseph Barbera | Director |