Marshall

"Any idea how many Hive has infected?" "Everyone in Quadrant D, along with agents O'Brien and Marshall." "That's something like 20 agents?" "It's 28."

- Alphonso Mackenzie and Phil Coulson

Marshall is a S.H.I.E.L.D. agent who worked under Phil Coulson. However Marshall was later caught in a trap and transformed into one of the Primitives under Hive's control with a bomb containing the Absolution Virus.

Becoming a Primitive
After S.H.I.E.L.D. captured Hive, Marshall was exposed to Terrigen Mist and underwent Terrigenesis, transforming him into one of the hideous Primitives. Losing control of his mind, Marshall, O'Brien, and other Primitive SHIELD agents caused chaos through the Playground. When the creator of the Primitives, Holden Radcliffe was found, he warned this was irreversible and Marshall's fate is left unknown.

Powers

 * Enhanced Strength: As a Primitive, Marshall possesses adrenaline induced peak human strength and infrared vision.

Allies

 * Hive † - Enemy turned Enthraller
 * O'Brien - Colleague

Enemies

 * S.H.I.E.L.D. (Second Incarnation) - Allies turned Enemies under Coercion
 * Phil Coulson - Director
 * Melinda May - Colleague
 * Alphonso Mackenzie - Colleague
 * Leo Fitz † - Colleague
 * Jemma Simmons - Colleague
 * Anderson - Colleague