 | Antony Anderson | ... | Host (1 episode, 2003) |
 | The Ataris | ... | Themselves (1 episode, 2003) |

| Jessica Biel | ... | Host (1 episode, 2003) |

| Hilarie Burton | ... | Host (1 episode, 2003) |
 | Michael Davenport | ... | Himself (1 episode, 2003) |
 | Evanescence | ... | Themselves (1 episode, 2003) |

| Alyson Hannigan | ... | Host (1 episode, 2003) |
 | Amy Lee | ... | Herself (1 episode, 2003) |
 | Ben Moody | ... | Himself (1 episode, 2003) |

| Chad Michael Murray | ... | Host (1 episode, 2003) |
 | Kris Roe | ... | Himself (1 episode, 2003) |

| Gregory Smith | ... | Host (1 episode, 2003) |

| Gabrielle Union | ... | Host (1 episode, 2003) |

| Emily VanCamp | ... | Host (1 episode, 2003) |
 | Travis Barker | ... | Himself (1 episode, 2004) |
 | The Black Eyed Peas | ... | Themselves (1 episode, 2004) |
 | Blink 182 | ... | Themselves (1 episode, 2004) |
 | Christopher Carrabba | ... | Himself (1 episode, 2004) |
 | Thomas DeLonge | ... | Himself (1 episode, 2004) |
 | Alesha Dixon | ... | Herself (1 episode, 2004) |
 | Ian Grushka | ... | Himself (1 episode, 2004) |
 | Nick Hexum | ... | Himself (1 episode, 2004) |
 | Mark Hoppus | ... | Himself (1 episode, 2004) |
 | The Killers | ... | Themselves (1 episode, 2004) |
 | Los Lonely Boys | ... | Themselves (1 episode, 2004) |
 | Tim Mahoney | ... | Himself (1 episode, 2004) |
 | Doug Martinez | ... | Himself (1 episode, 2004) |
 | John Mayer | ... | Himself (1 episode, 2004) |

| Alanis Morissette | ... | Herself (1 episode, 2004) |
 | Su-Elise Nash | ... | Herself (1 episode, 2004) |
 | New Found Glory | ... | Themselves (1 episode, 2004) |
 | Chad Sexton | ... | Himself (1 episode, 2004) |

| Jessica Simpson | ... | Herself (1 episode, 2004) |
 | Sabrina Washington | ... | Herself (1 episode, 2004) |
 | Kanye West | ... | Himself (1 episode, 2004) |
 | Aaron Wills | ... | Himself (1 episode, 2004) |