
Dean Adams Andrews Jr. was an attorney in New Orleans, Louisiana. During the trial of Clay Shaw, he was questioned by New Orleans District Attorney Jim Garrison regarding his Warren Commission testimony in which he had mentioned a man named Clay Bertrand having called him shortly after the assassination of John F. Kennedy asking him to represent Lee Harvey Oswald in Dallas, Texas. In August, 1967 Andrews was convicted on three counts of perjury for lying to a grand jury in his previous testimony.

Melvin Mouron Belli was a prominent United States lawyer, author, and actor known as "The King of Torts" and by insurance companies as "Melvin Bellicose". He had many celebrity clients, including Zsa Zsa Gabor, Errol Flynn, Chuck Berry, Muhammad Ali, The Rolling Stones, Jim Bakker and Tammy Faye Bakker, Martha Mitchell, Maureen Connolly, Lana Turner, Tony Curtis, and Mae West. During his legal career, he won over $600 million in damages for his clients. He was also the attorney for Jack Ruby, who shot Lee Harvey Oswald for the assassination of President John F. Kennedy.

Madeleine Duncan Brown was an American woman who claimed to be a longtime mistress of United States President Lyndon B. Johnson. In addition to claiming that a son was born out of that relationship, Brown also implicated Johnson in a conspiracy to assassinate President John F. Kennedy.

Charles Pearre Cabell was a United States Air Force General and Deputy Director of the Central Intelligence Agency (1953–1962).

Richard Cain, also known as Richard Scalzitti, was a notoriously corrupt Chicago police officer and a close associate of Mafia boss Sam Giancana.

Mary Elizabeth Sutherland Carpenter was a writer, feminist, reporter, media advisor, speechwriter, political humorist, and public relations expert. As the first woman executive assistant to Vice President Lyndon Baines Johnson from 1961 to 1963, and then as press secretary for First Lady Lady Bird Johnson from 1963 to 1969, Carpenter was a prominent member of the Johnson White House and also a close personal friend of the Johnsons.

Jesse Edward Curry was an American police officer who was the chief of the Dallas Police Department from 1960 to 1966. Curry was chief at the time of the assassination of President John F. Kennedy in downtown Dallas on November 22, 1963.

Richard James Cushing was an American prelate of the Roman Catholic Church. He served as Archbishop of Boston from 1944 to 1970 and was made a cardinal in 1958. Cushing's main role was as fundraiser and builder of new churches, schools, and institutions. Unlike his predecessor, he was on good terms with practically the entire Boston elite, as he softened the traditional confrontation between the Catholic Irish and the Protestant upper-class. He built useful relationships with Jews, Protestants, and institutions outside the usual Catholic community. He helped presidential candidate John F. Kennedy deflect fears of papal interference in American government if a Catholic became president.

David William Ferrie was an American pilot who was alleged by New Orleans District Attorney Jim Garrison to have been involved in a conspiracy to assassinate President John F. Kennedy. Garrison also alleged that Ferrie knew Lee Harvey Oswald. Ferrie denied any involvement in a conspiracy and said he never knew Oswald.

James Carothers Garrison was the District Attorney of Orleans Parish, Louisiana, from 1962 to 1973. A member of the Democratic Party, he is best known for his investigations into the assassination of President John F. Kennedy and prosecution of New Orleans businessman Clay Shaw to that effect in 1969, which ended in Shaw's acquittal. The author of three books, one became a prime source for Oliver Stone's film JFK in 1991, in which Garrison was portrayed by actor Kevin Costner, while Garrison himself also made a cameo as Earl Warren.

Samuel Mooney Giancana was an American mobster who was boss of the Chicago Outfit from 1957 to 1966.

Philip Matthew Hannan was an American Roman Catholic archbishop. Archbishop Hannan, in his episcopal career, served as auxiliary bishop of the Roman Catholic Archdiocese of Washington and later as the Eleventh archbishop of the Roman Catholic Archdiocese of New Orleans from September 29, 1965, to December 6, 1988.

Charles Voyde Harrelson was an American hitman and organized crime figure who was convicted of assassinating federal judge John H. Wood Jr., the first federal judge to be killed in the 20th century. Charles Harrelson was the father of actors Brett and Woody Harrelson.

William Michael "Hoot" Hootkins was an American actor, best known for supporting roles in Hollywood blockbusters such as Star Wars, Raiders of the Lost Ark, and Batman.

Sarah Tilghman Hughes was an American lawyer and federal judge who served on the United States District Court for the Northern District of Texas. She is best known as the judge who swore in Lyndon B. Johnson as President of the United States on Air Force One after John F. Kennedy was assassinated in Dallas on November 22, 1963. She was the first and only woman to have sworn in a US President. The photo depicting Hughes administering the oath of office to Johnson is widely viewed as the most famous photo ever taken aboard Air Force One.

Everette Howard Hunt Jr. was an American intelligence officer and author. From 1949 to 1970, Hunt served as an officer in the Central Intelligence Agency (CIA), particularly in the United States involvement in regime change in Latin America including the 1954 Guatemalan coup d'état and the 1961 Bay of Pigs invasion. Along with G. Gordon Liddy, Frank Sturgis, and others, Hunt was one of the Nixon administration "plumbers", a team of operatives charged with identifying government sources of national security information "leaks" to outside parties. Hunt and Liddy plotted the Watergate burglaries and other clandestine operations for the Nixon administration. In the ensuing Watergate scandal, Hunt was convicted of burglary, conspiracy, and wiretapping, eventually serving 33 months in prison. After release, Hunt lived in Mexico and then Florida until his death.

George Efythron Joannides was a Central Intelligence Agency officer who in 1963 was the chief of the Psychological Warfare branch of the agency's JMWAVE station in Miami, and in 1978 was the agency's liaison to the United States House Select Committee on Assassinations.

Claudia Alta "Lady Bird" Johnson was an American socialite and first lady of the United States as the wife of the 36th president of the United States, Lyndon B. Johnson from 1963 to 1969. She had previously served as the second lady from 1961 to 1963 when her husband was vice president.

Lyndon Baines Johnson, often referred to by his initials LBJ, was the 36th president of the United States, serving from 1963 to 1969. He had previously served as the 37th vice president from 1961 to 1963 under President John F. Kennedy. A Democrat from Texas, Johnson also served as a U.S. representative, U.S. senator and the Senate's majority leader. He holds the distinction of being one of the few presidents who served in all elected offices at the federal level.

Nicholas deBelleville Katzenbach was an American lawyer who served as United States Attorney General during the Lyndon B. Johnson administration.

John Fitzgerald Kennedy, often referred to by his initials JFK, was an American politician who served as the 35th president of the United States from 1961 until his assassination near the end of his third year in office. Kennedy served at the height of the Cold War, and the majority of his work as president concerned relations with the Soviet Union and Cuba. A member of the Kennedy family and a Democrat, he represented Massachusetts in both houses of the U.S. Congress prior to becoming president.

Malcolm MacGregor "Mac" Kilduff Jr. was an American journalist, best known for making the public announcement of the death of U.S. President John F. Kennedy.
Karyn Kupcinet was an American stage, film, and television actress. She was the only daughter of Chicago newspaper columnist and television personality Irv Kupcinet.

James Robert Leavelle was a Dallas Police Department homicide detective who, on November 24, 1963, was escorting John F. Kennedy assassin Lee Harvey Oswald through the basement of Dallas Police headquarters when Oswald was shot by Jack Ruby. Leavelle prominently appeared in several famous photographs—including one that won a Pulitzer Prize—taken of Oswald just before and as Ruby pulled the trigger.

Ilona Marita Lorenz was a German woman who had an affair with Fidel Castro in 1959 and in January 1960 was involved in an assassination attempt by the CIA on Castro's life.

Carlos Joseph Marcello was an American crime boss of the New Orleans crime family from 1947 until the late 1980s. G. Robert Blakey and other investigators have asserted that Marcello along with Santo Trafficante Jr. and Sam Giancana masterminded the 1963 assassination of United States President John F. Kennedy in retaliation for federal prosecution that threatened their secret criminal organization's multibillion-dollar international organized crime empires.

Godfrey T. McHugh was a United States Air Force general, and served as military aide to President John F. Kennedy.

H. Louis Nichols was an attorney who resided in Dallas, Texas. He is the only known attorney who visited Lee Harvey Oswald while Oswald was in custody by the Dallas Police Department after the assassination of President John F. Kennedy.

Lee Harvey Oswald was a former U.S. Marine who assassinated United States president John F. Kennedy on November 22, 1963.

William Bruce Pitzer was an officer of the United States Navy whose death is speculated to have had some connection with the assassination of John F. Kennedy.

Marina Nikolayevna Oswald Porter is the Soviet-American widow of Lee Harvey Oswald, the assassin of U.S. President John F. Kennedy. She married Oswald during his temporary defection to the Soviet Union and emigrated to the United States with him. She was not implicated in the assassination but testified against Oswald during the Warren Commission hearings. She remarried two years after Oswald's murder.

David Francis Powers was Special Assistant and assistant Appointments Secretary to President of the United States John F. Kennedy. Powers served as Museum Curator of the John F. Kennedy Library and Museum from 1964 until his retirement in May 1994. Powers was a military veteran who served in the U.S. Army Air Corps during World War II from 1942 to 1945. Powers was also a close friend of Kennedy.

Earl Forrest Rose was an American forensic pathologist, professor of medicine, and lecturer of law. Rose was the medical examiner for Dallas County, Texas, at the time of the assassination of United States President John F. Kennedy and he performed autopsies on J. D. Tippit, Lee Harvey Oswald, and Jack Ruby. After being shoved by Kennedy's aides, he stepped aside and allowed Kennedy's body to be removed from Parkland Memorial Hospital without performing an autopsy.

John "Handsome Johnny" Roselli, sometimes spelled Rosselli, was an influential mobster for the Chicago Outfit who helped that organization control Hollywood and the Las Vegas Strip. In the early 1960s, Roselli was recruited by the Central Intelligence Agency (CIA) in a plot to assassinate Cuban leader Fidel Castro.

Jack Leon Ruby was an American nightclub owner. He fatally shot Lee Harvey Oswald on November 24, 1963, while Oswald was in police custody after being charged with both the assassination of John F. Kennedy, the incumbent United States president, and the murder of Dallas policeman J. D. Tippit. A Dallas jury found Ruby guilty of murdering Oswald, and he was sentenced to death.

Clay LaVergne Shaw was a businessman and military officer from New Orleans, Louisiana. Despite his decorated service history and business success, Shaw is best known for being the only person brought to trial for involvement in the assassination of John F. Kennedy. Shaw was acquitted in 1969 after less than one hour of jury deliberation, but some conspiracy theorists continue to speculate on his possible involvement.

Cecil William Stoughton was an American photographer. He is best known for being President John F. Kennedy's photographer during his White House years.

Frank Anthony Sturgis, born Frank Angelo Fiorini, was one of the five Watergate burglars whose capture led to the end of the presidency of Richard Nixon. He served in several branches of the United States military and in the Cuban Revolution of 1958, and worked as an undercover operative for the Central Intelligence Agency. Sturgis and Miami CIA head David Morales met with E. Howard Hunt shortly before the assassination of John F. Kennedy.

Kerry Wendell Thornley was an American author. He is known as the co-founder of Discordianism, in which context he is usually known as Omar Khayyam Ravenhurst or simply Lord Omar. He and Hill authored the religion's text Principia Discordia, Or, How I Found Goddess, And What I Did To Her When I Found Her. Thornley was also known for his 1962 manuscript, The Idle Warriors, which was based on the activities of his acquaintance, Lee Harvey Oswald, prior to the 1963 assassination of John F. Kennedy.

The three tramps are three men photographed by several Dallas-area newspapers under police escort near the Texas School Book Depository shortly after the assassination of United States President John F. Kennedy on November 22, 1963. Since the mid-1960s, various allegations have been made about the identities of the men and their involvement in a conspiracy to kill Kennedy.

J. D. Tippit was an American police officer who served as an 11-year veteran with the Dallas Police Department. About 45 minutes after the assassination of United States President John F. Kennedy on November 22, 1963, Tippit was shot and killed in a residential neighborhood in the Oak Cliff section of Dallas, Texas. Lee Harvey Oswald was initially arrested for the murder of Tippit and was subsequently arrested for killing President Kennedy. Oswald was charged with both crimes shortly after his arrest but was killed by Jack Ruby two days later.

Henry Menasco Wade was a Texas lawyer who served as district attorney of Dallas County from 1951 to 1987. As such, he participated in two of the most notable U.S. court cases of the 20th century - the prosecution of Jack Ruby for killing Lee Harvey Oswald, and the U.S. Supreme Court's decision legalizing abortion, Roe v. Wade. In addition, Wade was district attorney when Randall Dale Adams, the subject of the documentary film The Thin Blue Line, was convicted in the murder of Robert Wood, a Dallas police officer.

Edwin Anderson Walker — known as Ted Walker — was a United States Army officer who served in World War II and the Korean War. He became known for his staunch conservative political opinions and was criticized by U.S. President Dwight D. Eisenhower for promoting a personal political opinion while in uniform. Walker resigned his commission in 1959, but Eisenhower refused to accept his resignation and gave Walker a new command of the 24th Infantry Division in Augsburg, Germany. Walker again resigned his commission in 1961 after being publicly and formally admonished by the Joint Chiefs of Staff for allegedly referring to Eleanor Roosevelt and Harry S. Truman as "pink" in print and for violating the Hatch Act of 1939 by attempting to influence the votes of his troops. President John F. Kennedy accepted his resignation, making Walker the only US general to resign in the 20th century.

Charles Wales Wyckoff was an American photographic innovator, a photochemist specializing in high speed photography, also noted today for his innovations in the field of high dynamic range imaging.