Although this marks Tabor Calchek's fourth credited appearance on the show, this is the very first episode in which actor David Hewlett actually interacts with the show's regulars. All of his appearances in Season 1 were 'block shot' in a single day and his dialogue was delivered to camera.
Tabor Calchek's girlfriend, Perelandra, is named after the second book in C.S. Lewis' Space trilogy. The first book is called Out of the Silent Planet and the third book is called That Hideous Strength.