Felix Blake
A Level 7 S.H.I.E.L.D. agent who came up running assignments and intel for Phil Coulson.
Felix Blake joined S.H.I.E.L.D. to keep otherworldly things away from everyone else, and he has worked his way up to Level 7 clearance doing it. He runs assignments more than he runs fieldwork, often as the voice on the other end of a line for Phil Coulson, and he holds people to the letter of an order: when Nick Fury hands him the job of recovering the last Chitauri weapon loose in the country after the Battle of New York, Blake sends Jasper Sitwell to close it out and expects it closed. He is a careful tactician, the sort who studies bank security footage frame by frame before he moves, and a reliable shot. Howard Stark's Nitramene has held his attention for years, and he thinks S.H.I.E.L.D. ought to be building with it.
How far into Marvel Cinematic Universe have you read?
Set your place and this page rewrites itself to exactly that point. Nothing ahead of you will show.