Upon completing high school, Joshua served in the United States Navy as a Gunner's Mate and Missile Tech. During his honorable service, he became a 9/11 first military responder, was among the first to deploy for Operation Enduring Freedom and continued to serve during Operation Iraqi Freedom.

After the military, Katz graduated from the University of Cincinnati with a degree in electronic media. He then moved to Los Angeles in 2013, where he began to pursue careers in screenwriting and acting.

Joshua's work in film and television includes a recurring co-star role on all three seasons of Code Black on CBS, stunt coordinating a Mastercard Commercial, and working as a military advisor on dozens of film and TV productions.

Katz is a graduate of the Writers Guild Foundation's Veterans Writing Project, a year-long screenwriting mentorship, for which he is now a WGA mentor. Since graduating the program, he's been optioned several times and wrote copy for an Under Armor commercial campaign.

Most recently, he was Assistant to the Executive Producers for two seasons of a Chuck Lorre network sitcom, for which he was also a contributing freelance writer. Joshua is a proud member of the WGA’s Disabled Writers Committee, especially at a time when disabled writers making up less than 1% of industry representation in writers’ rooms.