Nationality: Gran Mexico
Mars Ranking: #9
Age: 16
Height: 174 cm
Weight: 69 kg
Surgery Base: Huntsman Spider (Heteropoda Venatoria)
Eye color: green
Blood type: O
Favorite food: Fried Chicken
Dislikes: Customers who order tobacco under an alias
Birthdate: November 25 (Sagittarius)
Hobby: playing the guitar

Marcos Eringrad Garcia is a Mexican boy who, along with his two childhood friends, escaped from his country for poverty and joined the Annex Project to have the american citizenship.

After the M.O. Operation, Marcos gained the powers of the Huntsman Spider, giving him great strength, ferocity and incredible speed that can bypass the roaches leaving them no time to counter attack. He has immeasurable speed and can fight without breaks until the serum ends due to his high endurance. In combat Marcos also uses a staff that he calls the "Archnebuster Mk.II" (it's name is heavily mocked by his friends as they say it sounds like it was meant to 'bust' Spiders instead of cockroaches) that he uses to deflect ranged attacks and impale the roaches.
(Source: Terra Formars Wikia)