Hatem was born in Burbank, California and grew up in Monterey Park, California. Prior to his career in television writing and production, he was a waiter at Tony Roma's in Pasadena, California for several years. He also taught comedy traffic school for five years.
When asked when he knew he wanted to be a writer, he stated, "I thought it happened when I was in high school. But apparently I'd written and talked about being a writer since I was about five. I just don't remember it. Back then I thought I wanted to be an actor and a stand-up comedian. I've done a little of both and want to do more."
He attended the University of Southern California's School of Cinematic Arts, where he received a Bachelors degree in Film production.
Hatem lives in Pasadena, California, with his wife and children.
In 2003, he created the ABC/Touchstone television series Miracles. He also served as the Co-Executive Producer and Writer.
In 2005, Hatem worked with Fox Broadcasting Company, serving as the Supervising Producer of six episodes of the series Tru Calling and 13 episodes of the series The Inside. He wrote "The Loneliest Number" for The Inside, and "The Last Good Day" for Tru Calling.
He served as the co-executive producer of 21 episodes of CW's Supernatural from 2005–2006. He also wrote two episodes entitled "Asylum" and "Phantom Traveler".
In 2006, he was the executive producer of three episodes of the SyFy Channel mini-series The Lost Room.
In 2007, he was consulting producer of the USA's The Dead Zone. He wrote two episodes of the series entitled, "Big Top" and "Exile".
In 2010, he co-created and served as executive producer and writer on the ABC television series The Gates. The series is executive-produced by Gina Matthews and written and executive-produced by Grant Scharbo and Hatem.
In 2010, he created an ABC Studios untitled pilot. The crew included Chris Brancato, Bert Saikie and Gary Fleder. The cast included Katee Sackhoff: Julia Scott Will Yun Lee: Eddie Lao Richard T. Jones: Lt. Gerald Jaglom Treat Williams: Jack Holt Goran Visnjic: Angus Martin Nia Long: Taylor Sanchez Jason Wiles: Christian Holt and Miles Williams
In 2011 he was an Executive Producer for the series "The Secret Circle. Bert Saikie
He wrote 4 episodes for the NBC show Grimm from 2012–2013.