Cheese Dragons are not actually alive. They are enchanted items of food that act almost identically to dragons. They have no need to eat, but they must “live” in humid environments or they will dry out and harden.

Earth, who thinks of herself as female, is the most down to earth dragon in Kanaye's cave. While she is sensible and sincere, she is also serious to the point of frustrating most of the other dragons. She has no idea how to either take or make a joke; taking everything at face value. Someone tells her to "Go cry me a river", and she will simply state that cheese dragons can't cry.

Agent is one of the few dragons who actually likes Earth. She will tell him directly, with no hints, subterfuge or complaint, what she saw, heard or dealt with on any given day. He admires her, wishing he himself could be so straightforward.