| When I Was 17 is an MTV television show which features celebrities of today and looks back on "when they were 17". The show features photos as well as interviews with family and friends. Some past celebrities on the show include Queen Latifah, Khloé Kardashian, Drake, singer Trey Songz and internet star Perez Hilton. |
| Name | Character | Episodes |
|---|---|---|
| Kristin Chenoweth | Self | 1 |
| Alison Sweeney | Self | 1 |
| Melissa Joan Hart | Self | 1 |
| Enrique Iglesias | Self | 1 |
| Kathy Griffin | Self | 1 |
| Joey Lawrence | Self | 1 |
| Kelly Osbourne | Self | 1 |
| Kelly Rowland | Self | 1 |
| Usher | Self | 1 |
| Adam Levine | Self | 1 |
| Jordin Sparks | Self | 1 |
| Jason Derulo | Self | 1 |