Coulson is a fictional character from the Marvel Comics universe, primarily known for his role in the Marvel Cinematic Universe (MCU). He is portrayed by actor Clark Gregg and first appeared in the film Iron Man (2008). Coulson is an agent of S.H.I.E.L.D., a secret organization that deals with superhuman threats and espionage. In the MCU, Coulson is recognized for his calm demeanor and dedication to his work. He plays a significant role in bringing together the Avengers, a team of superheroes. His character has also been featured in the television series Agents of S.H.I.E.L.D., which explores his adventures and leadership within the organization.