The guests
Cameos
Former houseguests and other franchise figures who appeared during Big Brother 9.
| Guest | When | Appearance |
|---|---|---|
| Eric | Week 1, aired Wed Feb 13, 2008 | Co-hosted the first Head of Household competition with Jessica. |
| Jessica | Week 1, aired Wed Feb 13, 2008 | Co-hosted the first Head of Household competition with Eric. |
| Dick | Weeks 5/6 boundary, aired Wed Mar 19, 2008 | Appeared with Daniele in a filmed update about their lives after Big Brother 8. |
| Daniele | Weeks 5/6 boundary, aired Wed Mar 19, 2008 | Appeared with Dick in a filmed update about their lives after Big Brother 8. |
| Dick | Week 6, aired Tue Mar 25, 2008 | Returned to host the Power of Veto competition. |