| The subject of this article has no official name.|
It is a fan-given name as substitute for lack thereof, and should not be considered as part of the Attack on Titan universe.
Dennis has medium-length messy light-colored hair and slight stubble. He wears the standard Military Police uniform.
Sometime before the Survey Corps' 57th expedition beyond the Walls, Dennis briefs Marlowe, Hitch and Annie on an illegal drug known as Coderoin. He is informed that the drug has only recently been introduced to Stohess District. He learns that any soldier that confiscates enough of it will receive a special bonus.