- Thornton Lukela
- payroll accountant / first assistant accountant (30 episodes, 2005-2007)
- Alessio Puccio
- italian voice dubbing: Jeremy Kissner (30 episodes, 2005-2007)
- Susan Harris
- production secretary / production assistant (27 episodes, 2005-2007)
- Scott Markus
- production assistant (21 episodes, 2005-2007)
- Robert Griffith
- production accountant (19 episodes, 2005-2007)
- Christopher Stanback
- production assistant (13 episodes, 2005-2006)
- Travis Cameron
- production assistant (13 episodes, 2006-2007)
- Karen Hill Scott
- educational consultant (13 episodes, 2006-2007)
- Dayne Ahuna
- key craft service (13 episodes, 2006)
- Lisa Lee Mitchell
- production coordinator (12 episodes, 2006-2007)
- Lisa Kehaulani Cho
- production assistant (8 episodes, 2006-2007)
- Mike Winget
- production assistant (6 episodes, 2006)
- Diane Frauenholz
- production secretary (5 episodes, 2005-2006)
- Jacqui Popelka
- production coordinator (5 episodes, 2005-2006)
- Gwendolen Twist
- executive assistant (5 episodes, 2005-2006)
- Rebecca Agbe-Davies
- production coordinator / production coordinator: Discovery Kids (4 episodes, 2005-2006)
- Genie Joseph
- production liaison (4 episodes, 2005-2006)
- Erica Davis
- production assistant (3 episodes, 2005)
- Sara Helman
- production coordinator: Discovery Kids (2 episodes, 2005)
- Concepcion Alicino-Saucedo
- production secretary (1 episode, 2006)
- Linda Meier
- animal wrangler (1 episode, 2006)
- Virginia Abshier
- medical advisor (1 episode, 2007)
- Tami D'Addio
- production assistant (unknown episodes)
- Jason Skweres
- production assistant (unknown episodes)