Answer
The character portrayed by Ming-Na Wen in the television series "Agents of S.H.I.E.L.D." is Melinda May, a highly skilled and disciplined agent and pilot within the Strategic Homeland Intervention, Enforcement, and Logistics Division (S.H.I.E.L.D.). She serves as a prominent member of the organization, providing tactical support and guidance to the team throughout their missions, and is known for her expertise in combat, espionage, and piloting.