Guymon Patrick Casady (born 12 March 1969) is an American media executive, producer and talent manager. He was executive producer of the television series Game of Thrones, The Terror and Ripley on Netflix. He has been nominated for nine Emmy Awards, winning four.

He is the originating producer of the feature films Steve Jobs, which was nominated for two Oscars; Hope Springs, which was nominated for a Golden Globe; Office Christmas Party; Deep Water; Bruised; and The Fall Guy. He originated and was an executive producer on the $800M grossing franchise The Expendables. 

Casady is a founding partner of the management and production company Entertainment 360 in Los Angeles, California.

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