Agent Phil Coulson was one of the first agents of S.H.I.E.L.D to have any contact with all the Avengers, except Bruce Banner. Coulson was sent
Phil Coulson, Superhero Wiki
Phil Colson's Instagram, Twitter & Facebook on IDCrawl
Agent Phil Coulson - The Avengers Guide - IGN
Agent Coulson: The MCU Fell to the Dark Side in the Comics
FILMRAP: AGENT COULSON SHOULD GET A TV SERIES
MCU Fan Theory: Agent Coulson WANTED Loki to Kill Him in Avengers
Phillip Coulson (Earth-16112), Marvel Database
Agents of S.H.I.E.L.D. (season 5) - Wikipedia
S.H.I.E.L.D. (Avengers) - Marvel Cinematic Universe Guide - IGN
Phil Coulson, Movie Morgue Wiki