John Nathan-Turner liked the character of Will Chandler so much that he considered keeping him on as a regular companion. It was decided that the character would not have a lasting appeal and that his childlike character would quickly wear thin and lacked any clear path of development.
Originally intended to be a four part serial, but cut to two early in the script editing stage.
There was originally a scene where Tegan interacts with Kamelion that was filmed, but cut for time.