The 2015 season of the television series "Castle" is set to air on Sept. 21, 2015, as of July 2015. However, the final 13 episodes of season seven aired between Jan. 12, 2015, and May 11, 2015. Season seven began on Sept. 29, 2014.
"Castle," a crime drama created by Andrew W. Marlowe, receives a user-rating of 8.3 out of 10 stars on IMDb. The show stars Nathan Fillion as the main protagonist: Richard Castle, a crime-solving mystery novelist. It also stars Stana Katic, Jon Huertas and Seamus Dever as NYPD detectives. "Castle" first aired on ABC in 2009 and has earned four Primetime Emmy Award nominations.