| Name | Character | Episodes |
|---|---|---|
| Margaret Colin | Sandy Hamor | 7 |
| Leslie Mann | Erica Mercer | 7 |
| Tom Conti | Charles Wright | 7 |
| Mary McCormack | Beth Eckhart | 7 |
| Aida Turturro | Lydia | 7 |
| Peter Facinelli | Vincent Costanza | 1 |
| Denis O'Hare | Doyle | 1 |
| Laila Robins | Rachel | 1 |
| Francie Swift | 1 | |
| Gene Canfield | McHenry | 1 |
| Ivar Brogger | Nesbit | 1 |