Phillip J. "Phil" Coulson was a Director of SHIELD, before that one of its best agents, Director Nick Fury’s right-hand man for many important missions, and the primary operative of the Avengers Initiative. Coulson was killed by Loki shortly before the Battle of New York. His death gave the Avengers the push they needed to band together and stop Loki and the Chitauri. On Fury’s orders, Coulson was revived using treatments developed by Project TAHITI, and to preserve his sanity after being revive
MCU: Phil Coulson / Characters - TV Tropes
Phil Coulson - Wikipedia
John Garrett (comics) - Wikipedia
Baron Strucker, Ultimate Marvel Cinematic Universe Wikia
Vengeance, Ultimate Marvel Cinematic Universe Wikia, vengeance
Characters of the Marvel Cinematic Universe - Wikipedia
Patriot (Mace), Ultimate Marvel Cinematic Universe Wikia
Phil Coulson, Marvel Cinematic Universe Wiki
Phil Coulson, Yuna's Princess adventure Wikia