|This character exists primarily or exclusively within the Sonic the Comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
He is also a poltergeist, having been shot through the head by Plunder himself for taking a biscuit without asking (and he is constantly surrounded by flies). He later commented that being a ghost made him love pirating more than ever (to which Plunder responded that he should have killed Filch years earlier). Filch is an invaluable asset to Plunder's crew, as his ability to walk through walls and moves objects using his mind allows for great treasure hunting. He was once able to enter Doctor Robotnik's locked vault and open it from the inside. However, being a ghost also means that he has a ready excuse to avoid any heavy lifting.
- In the script of Sonic the Comic #23, "Pirates of the Mystic Cave", the description of the panel introducing both Filch and Captain Plunder describes Filch as "a scruffy Ben Gun-like [sic] character". Ben Gunn was a pirate and castaway from the book Treasure Island.