Damian Shannon is an American screenwriter and film producer. Shannon works with Mark Smith and is known for their collaborative script-writing projects, particularly Freddy vs. Jason and, later, the 2009 reboot on Friday the 13th.

Shannon attended Bishop McNamara High School and New York University. He then enrolled at the University of Southern California, where he met fellow student and later writing partner Mark Swift.

Shannon wrote an adaptation of the comic book Danger Girl for New Line Cinema in 2000 with Swift. They were two of four writers on the 2004 animated film Shark Tale.

Swift and Shannon wrote a script for the film Friday the 13th, released in 2009. They also wrote a script for a sequel before that project was cancelled. They had previously written the script for the 2003 film Freddy vs. Jason after the producers at New Line Cinema had rejected several previously written scripts.

In 2011, Swift and Shannon were executive producers of the film Seconds Apart. In 2012, they wrote and directed a horror film for Disruption Entertainment.

They wrote the script for Baywatch (2017), an adaptation of the TV series.

In 2014, Swift and Shannon worked on an original horror project for New Line Cinema and co-produced O'Lucky Day, a comedy for Paramount Pictures starring Peter Dinklage. In 2015, the pair worked on a script for a live-action Aladdin prequel, Genies.

Some of their unreleased projects include Vikings for Disney, an adaptation of the Image comic Hawaiian Dick, Inland Saints for Paramount, and an adaptation of Howard Chaykin's graphic novel Power & Glory.

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