It was announced on August 12, 2011, that Simon and Shawn Ryan have closed a deal for a put pilot to be aired on CBS.
On February 20, 2011, Simon announced he would be leaving Criminal Minds at the end of Season 6 to accept an overall deal with Sony Pictures TV.
Along with Matthew Gray Gubler, Simon attended the Roma Fiction Fest in July 2010.
When Simon came to Los Angeles in 2003, his agent scheduled 45 meetings in a week that included three or four people in each meeting. He doesn't recall everyone he met, but he learned that pitching is everything. He also discovered that Hollywood loves confident, enthusiastic people.
Simon finds the research for Criminal Minds so disturbing that he won't keep it in his house overnight. He leaves it in his car and brings it into his house in the morning.
Simon discussed the concept of relationships on Criminal Minds in an interview with Jacki Garfinkel (April 25, 2007), and explained he wanted to explore the characters, but not because they are running out of stories. He said learning about the characters must fit within the story.
Simon Mirren was quoted in Variety (March 27, 2007) as saying he's attracted to crime/spy/mystery dramas, such as Criminal Minds or Spooks, due to the emotions such shows explore.
Simon and his wife, Louise, and their son, Cameron, attended the world premiere of Pirates of the Caribbean: Dead Man's Chest at Disneyland on June 24, 2006. Helen Mirren, Simon's aunt, joined the family in the outing.
It wasn't until after he began working on Casualty that Simon found out he'd installed a 'posh Swedish kitchen' for the show's creator many years earlier when he was a builder.
Simon Mirren is repped by Simon Seidel at Endeavor.
Simon is the nephew of award-winning actor, Helen Mirren.
On March 27, 2007, it was announced that Simon Mirren and CBS Paramount Network TV signed a three-year, seven-figure overall deal, which called for him to continue working with Ed Bernero on Criminal Minds as well as develop projects for the studio.
Simon Mirren: (discussing his first script meeting for Without A Trace) I was jetlagged, had a cold, feeling really rough, and I went directly to the office. I'd never met these people in my life. I don't know what they thought of me. A south London builder walks into a Hollywood script meeting. That sort of thing just doesn't happen.
Simon Mirren: (on his craft) We're character writers. That's what we really, really love to write about. There's nothing more interesting for us than writing about characters.
Simon Mirren: (regarding his rise to success) If you want to drive a fast car you have to drive Formula One - for me if I wanted to do television and learn more I had to come to America.
Simon Mirren: The episodes of Criminal Minds are not the same thing each week. They're going on a different adventure, which is incredibly important for the success of shows these days.
Simon Mirren: (discussing Criminal Minds) I think we've set ourselves up and we've shown the audiences that you don't have to have a procedural beat story every week, you can have these characters. We can start exploring that, as long as we don't explore it in a way that's not our show.
Simon Mirren: I wouldn't still be in this country without Ed [Bernero]. I did this deal [with CBS Paramount Network TV] primarily so I could keep working with him.
Simon Mirren: (discussing Criminal Minds) It's really heightened drama. Crimes like murder bring out the darker sides of people and the better sides of people. As a writer, it's great to be able to mine the most extreme emotions.