Gray Diamond
Status Living
Gender Male
Portrayer[s] Rob Huebel (TV series)
Species Human
Allies Axe Cop
Powers Diamond-Based Powers
Genius-Level Intellect
First Appearance Last Appearance
Episode 77

Gray Diamond is the name of a superhero in the Axe Cop comics.


Gray Diamond is a diamond-themed superhero who lived in the same city as Axe Cop. Like Army Chihuahua's human form, Gray Diamond had fought in the war against Chicken Head where his friend Sergeant L was killed in battle. When Gray Diamond was given Sergeant L's brain by his mother, he obtained the components which created Liborg.

Gray Diamond accompanied Axe Cop, Bat Warthog Man, Army Chihuahua, Wolver Man & Iron Spider-Cannon, and Gray Stone into going to Invisible King Bad Guy Planet 2 and rescuing Bat Warthog Man's friends from the King of All Bad Guys. Following the fight with the King of All Bad Guys, it was discovered that Gray Diamond was given Sergeant T's brain by mistake.

Powers and abilitiesEdit

He can turn his hands into diamond swords that also shoot diamonds. Grey Diamond is also a super-genius where his brain is within the large diamond in his head.


Gray Diamond appears as a regular character in the Axe Cop TV series voiced by Rob Huebel. The episode "Mark Frankenstein" revealed that Gray Diamond's real name is Mark Frankenstein.

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