Question: Who besides Robert Novak was involved in the Plame affair?

Context articles: Denis Collins (journalist)
United States v. Libby
Reliable Sources
Plame affair criminal investigation
Brewster Jennings &amp; Associates
Murray Waas
Valerie Plame
Richard Armitage (politician)
Evans, Novak, Hunt &amp; Shields
Plame affair

Denis Collins, an American journalist who has written for the "Washington Post", the "San Jose Mercury News", and the "Miami Herald", served as juror #9 in the trial of I. Lewis "Scooter" Libby, Jr., relating to the Plame affair, and was the first juror to comment publicly about the trial.
United States v. Libby was the federal trial of I. Lewis "Scooter" Libby, a former high-ranking official in the George W. Bush administration, for interfering with special prosecutor Patrick Fitzgerald's criminal investigation of the Plame affair.
Reliable Sources is a Sunday morning talk show on the cable/satellite news network CNN that focuses on analysis of the American news media, currently hosted by Brian Stelter.
 The show is broadcast from 11:00 am to noon ET, from CNN's Time Warner Center studios in New York City.
 The show is also broadcast around the world by CNN International.
 It was initially created to cover the media's coverage of the Persian Gulf War, but has since also covered the media's coverage of the Valerie Plame affair, the Iraq War, the outing of Mark Felt as Deep Throat, and many other events and internal media stories.
 More recently, it has focused on coverage of the 2016 U.S. Presidential election, and the subsequent presidential transition and Presidency of Donald Trump, the fake news epidemic, as well as the alleged Russian interference in the 2016 US presidential election, among several other topics.
The Plame affair was a dispute stemming from allegations that one or more White House officials revealed Central Intelligence Agency (CIA) agent Valerie Plame Wilson’s undercover status.
 An investigation, led by special prosecutor Patrick Fitzgerald, had started.
 Concerning the possibility that one or more crimes may have been committed.
 The initial focus was on Scooter Libby; however, he was not the primary source of the leak.
Brewster Jennings & Associates was a front company set up in 1994 by the Central Intelligence Agency (CIA) as a cover for its officers.
 The most famous is Valerie Plame, a "covert employee of the CIA" whose employment status was classified and whose then-classified covert identity was published in a syndicated newspaper column by Robert Novak on July 14, 2003.
 Novak's initial primary source of that information was later said by Novak to be then United States Deputy Secretary of State (2001–2005) Richard Armitage, although the latter disagreed with Novak as to the extent of his role.
Murray S. Waas (born December 20, 1971) is an American Independent investigative journalist known most recently for his coverage of the White House planning for the 2003 invasion of Iraq and ensuing controversies and American political scandals such as the Plame affair (also known as the "CIA leak grand jury investigation", the "CIA leak scandal", and "Plamegate").
 For much of his career, Waas focused on national security reporting, but has also written about social issues and corporate malfeasance.
 His articles about the second Iraq war and Plame affair matters have appeared in "National Journal", where he has worked as a staff correspondent and contributing editor, "The Atlantic", and, earlier "the American Prospect".
 Waas also comments on contemporary American political controversies in his personal blogs "Whatever Already!"
 and at "The Huffington Post".
 An "instant book", the United States v. I. Lewis Libby which he edited, with research assistance by Jeff Lomonaco, was published by Union Square Press (an imprint of Sterling Publishing) in June 2007.
Valerie Elise Plame Wilson (née Plame; born August 13, 1963), known as Valerie Plame, Valerie E. Wilson, and Valerie Plame Wilson, is an American writer, spy novelist and former operations officer working at the United States Central Intelligence Agency (CIA).
 As the subject of the 2003 Plame affair, also known as the "CIA leak scandal", Plame had her identity as covert officer of the CIA leaked to the press by members of the George W. Bush administration and subsequently made public.
 In collaboration with a ghostwriter, Plame wrote a memoir detailing her career and the events leading up to her resignation from the CIA, and subsequently wrote and published two spy novels.
 After a number of years out of the limelight, she later made the news for leading a campaign to raise enough money to buy a controlling interest of Twitter stock, in order to remove Donald Trump from the platform, as well as controversy surrounding antisemitic activity on social media, for which she subsequently apologized.
Richard Lee Armitage (born April 26, 1945) is an American former naval officer who served three combat tours of duty in the Vietnam War as an advisor in contexts of riverine warfare.
 This experience and his acquired fluency in Vietnamese made him useful to the foreign service community of the government after the war.
 A Republican, he was appointed the 13th United States Deputy Secretary of State at the State Department, serving from 2001 to 2005 under George W. Bush.
 His promising State Department career came to an abrupt end due to a security leak scandal magnified by the press.
 He has acknowledged that he publicly released the information that Valerie Plame Wilson worked for the CIA, triggering the Plame affair.
 His defense that it was inadvertent during an interrogational press interview was accepted.
 After leaving the government service Armitage joined the international efforts of the private sector, where he has achieved some success.
Evans, Novak, Hunt & Shields was an interview/political discussion show on CNN for approximately 20 years hosted by Rowland Evans and Robert Novak.
 The weekly program featured four rotating panelists, including Evans, Novak, Al Hunt and Mark Shields.
The Plame affair (also known as the CIA leak scandal and Plamegate) was a political scandal that revolved around journalist Robert Novak's public identification of Valerie Plame as a covert Central Intelligence Agency officer in 2003.