Shawn Ryan is the co-creator and executive producer for Timeless.

Ryan created and executive produced “The Shield,” which starred Michael Chiklis and ran for seven seasons on FX. The series, known for its gritty portrayal of corrupt police officers, earned Ryan a Primetime Emmy Award nomination for Outstanding Writing for a Drama in 2002. During its run, the series won both Emmy and Golden Globe awards.

Other notable television work includes writing and executive producing “The Unit,” with David Mamet, and writing and executive producing “Terriers,” with Ted Griffin. He also co-created “Last Resort” with Karl Gajdusek. Additional credits include “Angel,” “Nash Bridges” and “Life with Louie.”

Ryan, who has an overall deal with Sony Pictures Television, served as the writer and executive producer of the limited series “Mad Dogs,” which was created by Cris Cole and premiered on Amazon in January 2016.

Ryan earned a joint degree in economics and theater from Middlebury College in Vermont, where he first began writing plays.