
| Mike Richards | ... | Himself - Host / ... (19 episodes, 2006-2008) |
 | Sam Horrigan | ... | Sam the Beauty (13 episodes, 2007) |
 | Nicole Morgan | ... | Herself - Geek (13 episodes, 2007) |
 | Cher Tenbush | ... | Beauty (11 episodes, 2006-2007) |
 | Josh Herman | ... | Geek (9 episodes, 2006) |
 | Brittany Knott | ... | The Beauties / ... (9 episodes, 2006) |
 | Richard Rubin | ... | The Geeks / ... (8 episodes, 2005-2006) |
 | Joe Block | ... | The Geeks (8 episodes, 2006) |
 | Cara | ... | Herself - Beauty (8 episodes, 2008) |
 | Matt Carter | ... | Himself - Geek (8 episodes, 2008) |
 | Chris | ... | Himself - Geek (8 episodes, 2008) |

| Leticia Cline | ... | Herself - Beauty (8 episodes, 2008) |
 | Amanda Corey | ... | Herself - Beauty (8 episodes, 2008) |
 | Joe Cortez | ... | Himself - Geek (8 episodes, 2008) |
 | Kristina | ... | Herself - Beauty (8 episodes, 2008) |
 | Tara McComas | ... | Herself - Beauty (8 episodes, 2008) |
 | Jason Prager | ... | Himself - Geek (8 episodes, 2008) |
 | Tommy Severo | ... | Himself - Geek (8 episodes, 2008) |
 | Mindi Emanuel | ... | The Beauties (7 episodes, 2005) |
 | Caitilin Stoller | ... | The Beauties (7 episodes, 2005) |
 | Ankur Mehta | ... | The Geeks (7 episodes, 2006) |
 | Wes Wilson | ... | The Geeks / ... (7 episodes, 2006) |
 | Jennylee Berns | ... | Herself - Beauty (7 episodes, 2007) |
 | Nate Dern | ... | Himself - Geek / ... (7 episodes, 2007) |
 | Cecille Gahr | ... | Herself - Beauty / ... (7 episodes, 2007) |

| Megan Hauserman | ... | Herself - Beauty (7 episodes, 2007) |
 | Niels Hoven | ... | Himself - Geek (7 episodes, 2007) |
 | Jasmine Moore | ... | Herself (7 episodes, 2007) |
 | Alan 'Scooter' Zackheim | ... | Himself - Geek / ... (7 episodes, 2007) |
 | Randi Ferrera | ... | Herself - Beauty (7 episodes, 2008) |
 | Greg Soriano | ... | Himself - Geek (7 episodes, 2008) |
 | Shawn Bakken | ... | The Geeks (6 episodes, 2005) |
 | Scarlet Garcia | ... | The Beauties (6 episodes, 2005) |
 | Brian McFayden | ... | Himself - Host (6 episodes, 2005) |
 | Sarah Coleman | ... | The Beauties / ... (6 episodes, 2006) |
 | Karl Hench | ... | The Geeks (6 episodes, 2006) |
 | Mario Muscar | ... | Himself - Geek (6 episodes, 2007) |
 | Nadia Underwood | ... | Herself - Beauty / ... (6 episodes, 2007) |
 | Danielle Gonzalez | ... | The Beauties (5 episodes, 2006) |
 | Chris Saroki | ... | Himself (5 episodes, 2006) |
 | Erin Gipson | ... | Herself - Beauty (5 episodes, 2007) |
 | Luke Neyer | ... | Himself (5 episodes, 2007) |
 | Drew Sawa | ... | Himself - Geek (5 episodes, 2007) |
 | Jim Babcock | ... | Himself - Geek (5 episodes, 2008) |
 | Jonathan Prater | ... | Himself - Geek (5 episodes, 2008) |
 | Tiffany | ... | Herself - Beauty (5 episodes, 2008) |
 | Andrea Ciliberti | ... | Herself - Beauty (4 episodes, 2007) |
 | Matt Herman | ... | Himself - Geek (4 episodes, 2007) |
 | Jillian Beyor | ... | Herself - Beauty (4 episodes, 2008) |

| Tabitha Taylor | ... | Sofia / ... (3 episodes, 2006-2007) |
 | Piao Sam | ... | Himself - Geek (3 episodes, 2007) |

| Sheree Swanson | ... | Herself - Beauty (3 episodes, 2007) |
 | Amber | ... | Herself - Beauty (3 episodes, 2008) |
 | Lauren Bergfeld | ... | Co-Host / ... (2 episodes, 2005-2006) |
 | Jennipher Johnson | ... | Beauties (2 episodes, 2006) |
 | Tyson Mao | ... | The Geeks (2 episodes, 2006) |
 | Tori Elmore | ... | Herself - Beauty (2 episodes, 2007) |
 | Erin Schneider | ... | Beauties / ... (2 episodes, 2007) |
 | Sanjay Shah | ... | Himself - Geek (2 episodes, 2007) |
 | John English | ... | Himself - Geek (2 episodes, 2008) |
|
| Ashton Kutcher | .... | executive producer (47 episodes, 2005-2008) |
| Nick Santora | .... | executive producer (47 episodes, 2005-2008) |
| Jason Goldberg | .... | executive producer (36 episodes, 2005-2007) |
| Joke Fincioen | .... | co-executive producer (23 episodes, 2007-2008) |
| Danny Kon | .... | producer (23 episodes, 2007-2008) |
| Biagio Messina | .... | co-executive producer (23 episodes, 2007-2008) |
| Todd Sharp | .... | story producer (22 episodes, 2007-2008) |
| Brian Smith | .... | co-executive producer (21 episodes, 2005-2007) |
| Adam Paul | .... | producer (13 episodes, 2005-2006) |
| Elayne Cilic | .... | co-executive producer (10 episodes, 2008) |
| Eric Evangelista | .... | consulting producer (9 episodes, 2007) |
| Carrie MacFadden | .... | challenge producer (9 episodes, 2008) |
| Kate Lott | .... | associate producer (8 episodes, 2006) |
| Chris Potocki | .... | consulting producer (8 episodes, 2007) |
| Tina Nicotera | .... | field producer (7 episodes, 2005) |
| Jennifer VanGaasbeek | .... | associate producer (7 episodes, 2005) |
| Matt Westmore | .... | producer (7 episodes, 2006-2007) |
| Dana C. Arnett | .... | post producer (6 episodes, 2006) |
| Heather Carrington | .... | supervising challenge producer (6 episodes, 2006) |
| Sara Clinehens | .... | story producer (2 episodes, 2006) |
|
| John Foy | .... | executive producer (unknown episodes) |
| Eli Holzman | .... | co-executive producer (unknown episodes) |
| Todd A. Nelson | .... | executive producer (unknown episodes) |
| Brian Richardson | .... | co-executive producer (unknown episodes) |
| J.D. Roth | .... | executive producer (unknown episodes) |
| Genevieve Tackenberg | .... | story producer (unknown episodes) |
| |
|
| Bry Thomas Sanders | .... | camera operator (16 episodes, 2005-2006) |
| Alan Mackulin | .... | assistant camera / camera operator / ... (15 episodes, 2006-2008) |
| Palmer Anderson | .... | Steadicam assistant (10 episodes, 2008) |
| James Gips | .... | assistant camera (10 episodes, 2008) |
| Sarah Levy | .... | camera operator (10 episodes, 2008) |
| Ryan Rude | .... | camera operator (10 episodes, 2008) |
| Dashevsky Dimitri | .... | camera operator (9 episodes, 2007) |
| Petra Costner | .... | camera operator (8 episodes, 2007) |
| Brent Mazursky | .... | lighting designer (7 episodes, 2006) |
| Carrie Dufresne | .... | assistant camera (7 episodes, 2007) |
| Rob Hache | .... | camera operator (7 episodes, 2007) |
| Scott Rettberg | .... | camera operator (3 episodes, 2005) |
| Alzahir Born | .... | assistant camera (2 episodes, 2006) |
|
| Oscar Dominguez | .... | lighting designer (unknown episodes) |
| Justin M. Lubin | .... | still photographer (unknown episodes) |
| |
|
| Chad C. Carter | .... | post-production engineer (31 episodes, 2007-2008) |
| Lee Carlo | .... | post-production assistant (23 episodes, 2007-2008) |
| Brad Cordeiro | .... | assistant editor (13 episodes, 2007) |
| Graham Greenlee | .... | post-production assistant (13 episodes, 2007) |
| Gerald Meech | .... | assistant editor (13 episodes, 2007) |
| Heydar Adel | .... | on-line editor (12 episodes, 2005-2006) |
| Jorge Lebron-Rodriguez | .... | lead assistant editor (12 episodes, 2007) |
| Tucker Biggs | .... | assistant editor (10 episodes, 2008) |
| Alex Katz | .... | supervising editor (10 episodes, 2008) |
| Juan Carlos Montoya | .... | assistant editor (10 episodes, 2008) |
| Damien Michael Belliveau | .... | post-production coordinator (8 episodes, 2006) |
| Joi McMillon | .... | first assistant editor (8 episodes, 2006) |
| Joyce Yeich | .... | post-production assistant (8 episodes, 2006) |
| James Van Patten | .... | assistant editor (8 episodes, 2007) |
|
| Jonathan Fischer | .... | assistant editor (unknown episodes) |
| Jonah Max | .... | assistant editor (unknown episodes) |
| Tia D. Rudd | .... | post-production (unknown episodes) |
| |
|
| Lee Carlo | .... | production assistant (22 episodes, 2007-2008) |
| Brian Massingill | .... | assistant production coordinator / production assistant (22 episodes, 2007-2008) |
| Kevin Patrick Bridger | .... | production assistant (17 episodes, 2007-2008) |
| Kerri McDermott | .... | assistant: JD Roth (17 episodes, 2007-2008) |
| Dale Estabaya | .... | logger (16 episodes, 2005-2006) |
| Jesse Drollette | .... | senior story editor / story editor (15 episodes, 2007-2008) |
| Leslie Plumlee | .... | production accountant (14 episodes, 2006-2007) |
| Jeselle Hicks | .... | executive assistant (13 episodes, 2005-2006) |
| Jill M. Goslicky | .... | story editor (11 episodes, 2007) |
| Sandra Siso | .... | set production assistant (11 episodes, 2007) |
| Ayana Moultrie | .... | logger (10 episodes, 2008) |
| Zoa Keith | .... | production assistant (9 episodes, 2006) |
| Thierry Branger | .... | production assistant (8 episodes, 2006) |
| Samuel Proof | .... | night set production assistant (8 episodes, 2006) |
| Derek Oishi | .... | production assistant (8 episodes, 2007) |
| Sarah Pavia | .... | assistant: JD Roth (8 episodes, 2007) |
| Richard H. Wood | .... | key set production assistant (7 episodes, 2005) |
| Derek Mihalik | .... | production assistant (7 episodes, 2006) |
| Tricia Horn | .... | production assistant (7 episodes, 2007) |
| Jessica Navarro | .... | production coordinator (7 episodes, 2007) |
| Jennifer Orme Erwin | .... | creative executive (6 episodes, 2006) |
| Rico Laurie | .... | production assistant (6 episodes, 2006) |
| Sean Patrick Kelly | .... | challenge coordinator (5 episodes, 2007) |
| Stephanie Dozier | .... | logger (4 episodes, 2006) |
| Nathan Taflove | .... | story editor (2 episodes, 2005-2006) |
| Tom Leach | .... | personal assistant to producer / production assistant (2 episodes, 2007) |
| Ram Paul Silbey | .... | production assistant (2 episodes, 2008) |
|
| Sonia Garcia Clyne | .... | production coordinator (unknown episodes) |
| Halsey D. Corbin | .... | production assistant (unknown episodes) |
| Rick Garcia | .... | pelco operator (unknown episodes) |
| D.J. Gilbert | .... | production assistant (unknown episodes) |
| Kim Hedland | .... | production accountant (unknown episodes) |
| Kevin Kramer | .... | executive assistant / live logger (unknown episodes) |
| Karyn Murphy | .... | executive assistant (unknown episodes) |
| D. Max Poris | .... | challenge coordinator (unknown episodes) |
| Andre C. Verderame | .... | production assistant (unknown episodes) |
| Autumn Wilner-Heard | .... | executive assistant (unknown episodes) |
| |