Clark Gregg recently made an appearance on the PBS program Tavis Smiley, where he unveiled a new clip from Marvel's The Avengers, which hits theaters nationwide May 4. The actor plays Agent Coulson, the S.H.I.E.L.D. agent who hasn't shown much emotion in the previous Marvel Studios movies. This scene shows us a new side of Coulson, when he gets to meet one of his own personal heroes, Captain America (Chris Evans). Check it out.