Molestus looks like a comon rat, save for the fact that he's a light whiteish-blue, and fades in and out of visible sight.
"...my ghost rat. Spectra named him...ok she calls me that and I thought it was funny to name my rat that. No idea what it means though...must be latin for awesome!"
- "Molestus" is Latin for "annoying".
- Echo was given a ghost rat because of his annoying nature, and because of a rat's similar abbility, much like a ferret's, to get into anything anywhere at any time
- A humanized version of Molestus makes him still appear to be a ghost who fell out of a clothes hamper basket, due to the odd bits of random clothing he's wearing. He seems to have a mischievious spirit though.