Life and career

An Italian-American, Mazzara was born in Manhattan and grew up in Queens, New York. He graduated from St. Francis Preparatory School in 1985. He attended NYU and earned a masters in English. He worked as a hospital administrator in New York before moving to Los Angeles to pursue a career as a writer in 1998.

He was a story editor and writer for the fourth and fifth seasons of Nash Bridges. In 2002, he joined the drama series The Shield as an executive story editor and writer for its first season; was promoted to producer for the second season while continuing to write, to supervising producer for the third season, to co-executive producer for the fourth season and to executive producer for the fifth season; and left midway through the sixth season in 2006. Later in 2006 he was an executive producer on the short-lived series Standoff, and then a co-executive producer on the first season of NBC drama Life.

Mazzara left Life to create and executive produce a new series Crash, based on the Oscar-winning film of the same name, on which he served as head writer and showrunner. He left after one season, but was credited as a consulting producer for the second season premiere.

In 2009, he joined the medical drama series Hawthorne for two seasons as executive producer and writer. In 2010, he wrote his first of several episodes of the AMC series The Walking Dead, episode 1.5: "Wildfire.

On July 27, 2011, it was reported that Mazzara had taken over as showrunner of The Walking Dead after Frank Darabont dropped out of the position. Mazzara left this role following season 3.

Glen Mazzara is the Creator, Executive Producer, and Showrunner of A&E’s new series, Damien, based on the classic horror film, The Omen.

Filmography

Producer

Year	Show	Role
2002-2006	The Shield	Executive story editor Producer Supervising producer Co-executive producer Executive producer
2006	Standoff	Executive producer
2007	Life	Co-executive producer
2008-2009	Crash	Executive producer Consulting producer
2009-2010	Hawthorne	Executive producer
2011	Criminal Minds: Suspect Behavior	Consulting producer
2011-2013	The Walking Dead	Executive producer
2016	Damien

Writer

Year	Show	Notes
1998-2000	Nash Bridges	6 episodes
2002-2007	The Shield	16 episodes
2006	Standoff	Episode: "Life Support"
2007	Life	Episode: "Let Her Go"
2008	Crash	Episode: "Episode One"
2009	Hawthorne	3 episodes
2010-2013	The Walking Dead	7 episodes
2011	Criminal Minds: Suspect Behavior	2 episodes

[ Source: Wikipedia ]