|Sir Grimmsibald Femursworth|
|Hair color|| Green (human)|
|Eye color|| Blue (human)|
|Friends|| Warriors for Hire|
|First Appearance||The Tome of Morrow|
|Voiced by||Jeff Bennett|
Femursworth's attire consists of a tuxedo with a bow tie and gloves as well as a monocle. As a human, he has green hair, dark skin and wears a moustache. As a skeleton, he wears a hood over his head.
Grimmmsibald has a polish and pompous attitude but is very kind. He also laughs evilly when reading a good joke.
In his debut, Grimmsibald arrives in the Printed Page trying to acquire the book from the Tome of Morrow. He hires the Warriors to find the book for him. While they were gone, he constantly shapeshifts Helmut much to both of their amusements. After receiving the book, he turns back to a human and rewards the Warriors and Noville.
- Magic: Grimmsibald has the ability to shapeshift others but cannot do the same for himself.