|Seasons||2, 3, 4, 5|
|Date of birth||April 2, 1962|
Clark Gregg played FBI Special Agent Michael Casper on The West Wing. He is perhaps best known for his role in Iron Man, Iron Man 2, Thor and The Avengers as Agent Phil Coulson, a role somewhat similar to Agent Casper. He also starred on The New Adventures of Old Christine and wrote, directed and starred in the feature film Choke. He had previously guest starred on Aaron Sorkin's Sports Night.