Lyndon B. Johnson
Lyndon Baines Johnson was a 20th century Human politician who served as the 36th President of the United States. He had previously served as Vice President of the United States of America under John F. Kennedy, becoming President following Kennedy's assassination in 1963. ()

An image depicting then-Vice President Johnson, taken during Kennedy's 1961 "Decision to Go to the Moon" speech, was scanned by the Talosians as they reviewed the library computer files on board  in 2254. ()

In 1963, Vice President Johnson took his oath of office during his inauguration to become president, following the assassination of Kennedy, while en route to Washington, DC. ()

In 1968, launch director Cromwell asked for a direct telephone line to Johnson, to inform him about the malfunction of the nuclear missile, launched from McKinley Rocket Base, which could've ended in a possible World War III. ()

Appendices

Background information 

The original version of "The Cage" depicted a simple sketch of Johnson during the Talosian's scan of the Enterprise computers. Johnson was in office when "The Cage" was filmed and at the time of the first two and half seasons of Star Trek between 1966 and 1968. Thus, he was the last President to be seen on the databank records in the pilot.

Johnson was not named in dialogue in , but the established timeframe of the episode (1968) indicates, he was the President of the United States at the time the events took place.

William Shatner cast Laurence Luckinbill as Sybok in  after seeing Luckinbill portray Johnson in a 1987 TV film for PBS.

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Humans
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Retconned material in background