Joseph Kyle Rogan was born to German-American parents in California. After completing high school he enrolled at UCLA, where he graduated with a bachelor's degree in English Literature. He went on to receive his master's degree in Criminology and Law from UC Berkeley.

After completing his schooling, he worked as a Los Angeles Police Department SWAT team member, and in the U.S. Army's elite Delta Force. Rogan also did fieldwork for the Central Intelligence Agency before being seconded to the Counter Terrorist Unit. While at CTU, he was the Team Leader for an action known as Operation Proteus and the Section Captain during the incident of the Hotel Los Angeles attack. He later uncovered evidence that three CTU agents, including his mentor Christopher Henderson, were taking bribes. Joseph gained a reputation as a whistleblower, and lost favor with CTU hierarchy.

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