|Race & Species||Human|
|Affiliation||The United States of America|
MK-I was a soldier in the US military that wears a specialized suit made by the US Government. He was a part of the MK Unit.
He is a very small man (possibly a dwarf) that wears a suit with four "eyes." He is seen riding on MK-III's back.
He is one of the members of the US forces that enters North Korea to obtain Jin Mo-Ri. When in the tunnel attempting to collect him, they come across the RE Taekwondo Force. He takes the crystal that houses Mo-Ri and put it in a suitcase before running off. While running away, he gets caught in the blast that came from the gorilla.