Sarge (Marvel Cinematic Universe)

"Sarge: Let her go. Agent Fox: You? Sarge: I don’t ask twice. Agent Fox: You’re from S.H.I.E.L.D. Sarge: Never heard of it."

- Sarge revealing himself while killing Agent Fox.

"Sarge" is the presumed main antagonist of Season 6 of the TV series Marvel's Agents of S.H.I.E.L.D. He is a mercenary leader with a mission on Earth and who bears a mysterious resemblance to the late former S.H.I.E.L.D. director Phil Coulson.

He is portrayed by starring cast member Clark Gregg, who also portrayed Nat Jones in Mr. Popper’s Penguins and Chuck Muckle in Hoot.

History
Sarge's subordinates, Butterfly, Jaco, and Pax, successfully made it through the portal and arrived on Earth. However, after they mourned the death of their fellow teammate, Tinker, who died due crossing an unstable portal through a concrete wall, they find that Sarge will be arriving at the same place where the Museum of Natural History was built. They then decide to blow it up so Sarge could arrive without any issues.

However, just as they were about to, S.H.I.E.L.D. interfered. Butterfly was sent to distract them while the others finished the job. After the museum was successfully blown up, the portal opened and Sarge arrived with his truck, which he used to smash through several S.H.I.E.L.D. vehicles. He jumps out and confronted Agent Fox, who had Butterfly. After the agent hesitated due to his resemblance of Coulson, Sarge coldly executed him and said he never heard of S.H.I.E.L.D. He then drove off with his crew.

Trivia

 * Sarge is the fifth villain in the TV series whose actor is listed as a series regular, preceded by Grant Ward, Hive, Holden Radcliffe and Doctor Leopold Fitz.