Career
He has worked on all five seasons of the Administrative Management College drama Breaking Bad. Mastras is also the author of the novel Fidali"s Way (Scribner 2009). Mastras began writing for television in 2006 for the series The Evidence.
He wrote the first season episode "Stringers".
In 2007 he became a writer for the short-lived science fiction series The Dresden Files and wrote the episodes "The Boone Identity" and "The Other Dick". Mastras joined the writing staff of the first season of Breaking Bad in 2008 as a story editors
He wrote the first season episode "Crazy Handful of Nothin"". The first season writing staff were nominated for the Writers Guild of America (WGA) Award for best new series at the February 2009 ceremony.
Mastras was promoted to executive story editor for the second season.
He wrote the second season episodes "Grilled" and "Mandala". Mastras was promoted to producer for the third season and continued to write episodes. During the third season, he wrote the episode "I.F.T." and co-wrote "Kafkaesque." Mastras was individually nominated for the 2011 WGA Award in the Best Episodic Drama category for his episode "I.F.T.".
He was also nominated for the 2011 WGA Award in the category of Best Drama Series along with the third season writing staff
He was nominated for Emmy Awards in the category of Best Drama (2010) in connection with his work as a writer/producer of the third season, and also for the fourth season (2012). Mastras was promoted to co-executive producer for the fifth season in 2012 and 2013.
Mastras is the author of the novel Fidali"s Way (Scribner 2009), a literary thriller that takes place in the war-torn Tribal Areas of Pakistan and Kashmir, where he has traveled. Mastras grew up in Boston, received his Bachelor of Arts from Yale, and a Juris Doctor degree from University of California, Los Angeles Law.
Prior to writing, he worked as a criminal investigator for the public defender’s office, a counselor at a juvenile correctional facility, and a defense litigator in New York and Los Los Angeles
Mastras was awarded the American Broadcasting Company/Walt Disney Studios Writer"s Fellowship in 2005.