Graham Yost

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Graham Yost
Yost with his Peabody Award in 2011
Born	(1959-09-05) September 5, 1959 (age 65) Etobicoke, Ontario, Canada
Occupation(s)	Screenwriter, television producer, television director, actor.
Years active	1989–present

Graham John Yost (born September 5, 1959) is a Canadian film and television screenwriter. His best-known works are the films Speed, Broken Arrow, and Hard Rain and the TV series Justified and Silo.