- Verena Aurbek
- research coordinator (2 episodes, 2010)
- Kristen Burns
- programming coordinator (2 episodes, 2010)
- Randall Bytwerk
- research coordinator (2 episodes, 2010)
- Anne Hazlett
- production assistant (2 episodes, 2010)
- Joanna Palmer
- production assistant (2 episodes, 2010)
- William Rauscher
- research coordinator (2 episodes, 2010)
- Dan Bittner
- voice (1 episode, 2010)
- Galen Black
- archive material (1 episode, 2010)
- Wibke Bruhns
- archive material (1 episode, 2010)
- Tony Call
- voice (1 episode, 2010)
- Geoffrey Cantor
- voice (1 episode, 2010)
- Eliza Foss
- voice (1 episode, 2010)
- Adam Grupper
- voice (1 episode, 2010)
- James Lurie
- voice (1 episode, 2010)
- Beth McDonald
- voice (1 episode, 2010)
- Christina Neilsen
- voice (1 episode, 2010)
- Jason Schulmann
- voice (1 episode, 2010)
- Hannah Smith
- voice (1 episode, 2010)
- Richard Topol
- voice (1 episode, 2010)
- Suzanne Toren
- voice (1 episode, 2010)