Lou almost ruins one of Mary's parties when his old girlfriend, Charlene Maguire, arrives with a date. He tries to make her jealous by taking out one of Mary's neighbors.
| Name | Type | Role | |
|---|---|---|---|
| Bob Ellison | Writer | ||
| Penny Marshall | Guest Star | ||
| Jeff Conaway | Guest Star | ||
| James Jeter | Guest Star | ||
| Janis Paige | Guest Star | ||
| Jay Sandrich | Director |