Clark Gregg

as Harry Kendall Thaw

as NSA Director Donald Briggs

as Don Hollenbeck

as Lieutenant

as Self

as Vice President Harold Moseley

as Robert Lyndon

as Self

as Alan

as Arthur Sackler

as Ketcher

as Arthur Highsmith

as Dr. Bruce Ivins

as Nick

as Terry Stewart

as Howard Wenke

as Agent Coulson (voice)

as Agent Phil Coulson (voice)

as John

as Phil Coulson (archive footage) (uncredited)

as Self - Actor, "The Avengers"

as Admiral Anton Milius

as James R. Fuller

as Self - Host

as Agent Coulson

as Ron

as Paul

as Calvin Bondurant

as Phil Coulson

as Self / Philip Coulson

as Dr. Mekel

as Self

as Judge

as Self

as Mason Grantz

as Self

as Self

as Self - Guest

as Gerald

as Mr. Markovic

as Phil Coulson

as Sarge

as Judge Klark

as Leonato

as Howard

as Edward Berger

as Self

as Nat

as Self

as Agent Phil Coulson

as Phil Coulson (voice)

as Agent Phil Coulson

as Agent Phil Coulson

as Nat Jones

as Agent Coulson

as Agent Coulson

as Vance

as Lord High Charlie

as Agent Coulson

as Nelson Hardwicke

as Henry

as Tom Pullman

as Muckle

as Publisher

as Richard Campbell

as Ben Johnson

as Ray Madison

as Steckle

as Allen McShane

as Officer Hannagan

as Miller

as Teddy Goodman

as Nelson Primus

as Mr. Hadfield

as Self - Guest

as Eason Jordan

as Paul Outerbridge

as Bill

as William Faulks

as Capt. Tom Metsker

as Harvey

as Supernerd

as Doug Mackenzie

as WDKK Floor Director

as Dickinson

as Michael Casper

as Benjamin Taft

as Cam

as Hank / Henrietta

as Harris Bragen

as FBI Sniper

as Cop #1

as Bob McGrath

as Ex-Boyfriend

as Dave

as Dr. Walters

as Randy

as Kevin Rooney

as Don Dudley

as Jake Shank

as Staff Sergeant

as Darryl Beekman, Jr.

as Dickinson

as Marty

as Ken O'Donnell

as Patrick Dunne

as Douglas Panton

as Stage Manager

as Stage Manager

as Self - Presenter

as Self