| WARNING! |  |
| The information in this article comes from Marvels, warlord of mars and is not written by Edgar Rice Burroughs. |
Grogg is a large and incredibly strong red martian in the service of Kantos Kan.
History[]
He was once an odwar, and according to Kantos Kan, the greatest Barsoom had ever known. No man save for John Carter was quicker and more adept with a blade. Protecting Kantos Kan during the battle at Zodanga, he was injured.
Personality[]
He could no longer remember his old life, and now was incredibly simple minded, but this made him no less heroic. Grogg cared a great deal for his friend Kantos Kan who he often referred to as "Little One".