These unnamed characters take the same appearance as Shovel Knight himself, except the helmet is removed revealing a blue fish head.
- "????: Oh hey how's it going? Ahh, it's nice to get that helmet off sometimes!"
- With the Shovel Knight Amiibo, Custom Knight can acquire a costume named Fish Head. This costume has a similar appearance to that of ????.
- With these unnamed characters taking the same appearance as Shovel Knight, many people speculate that Shovel Knight himself is actually a fish-headed character. Whether or not this is true, it most likely could be a simple joke put in by the developers.
- This is also referenced on Yacht Club Games' s FAQ, where one of the questions is "Will Shovel Knight eventually become a Mermaid?"
- In an official merchandise statue, Shovel Knight's head can be swapped out with the Fish Head. It is still not stated, however, if the Fish Head is actually Shovel Knight's head under the helmet.