The actor made his Marvel debut as Agent Phil Coulson in 2008's 'Iron Man' Clark Gregg has loved his Marvel experience overall, except for one thing. The actor, 62, told PEOPLE exclusively at the ...

Agents of S.H.I.E.L.D.' star Clark Gregg reflects on the 10th anniversary of his first appearance in Marvel Cinematic Universe, as Agent Phil Coulson, in 2008's 'Iron Man.' ...