The appearance of Barney's nephew, baby Marblehead, causes a rift between him and Fred. Fred just can't understand Barney's devotion to the visiting baby, but his attitude changes when Wilma informs him that they are going to have a baby of their own.
| Name | Type | Role | |
|---|---|---|---|
| Warren Foster | Writer | ||
| Mel Blanc | Guest Star | ||
| Bea Benaderet | Guest Star | ||
| Don Messick | Guest Star | ||
| William Hanna | Director | ||
| Joseph Barbera | Director |