Bollywood Homicide

Psych (season 4)
The DVD cover of the fourth season of Psych
Country of origin	United States
No. of episodes	16
Release
Original network	USA Network
Original release	August 7, 2009 – March 10, 2010
Season chronology
← Previous Season 3 Next → Season 5

The fourth season of Psych originally aired in the United States on USA Network from August 7, 2009 to March 10, 2010. It consisted of 16 episodes. James Roday, Dulé Hill, Timothy Omundson, Maggie Lawson, Corbin Bernsen, and Kirsten Nelson reprised their roles as the main characters. James Roday portrayed Shawn Spencer, a fake psychic detective who periodically consults for the Santa Barbara police department. A DVD of the season was released on July 13, 2010.

Steve Franks, creator of the series, returned for the fourth season as showrunner. The theme song, "I Know, You Know" by The Friendly Indians, continued to be used, though it was edited twice: in "Bollywood Homicide," the song was given a Bollywood theme with the lyrics sung in Hindi, while Boyz II Men performed an a cappella version for "High Top Fade Out."

Mel Damski returned to direct four episodes, while Stephen Surjik returned for three and Steve Franks directed two. Returning to direct one episode each were John Badham, Jay Chandrasekhar, Michael McMurray, James Roday, and Matt Shakman. Andrew Bernstein and Tawnia McKiernan each joined the show to direct one episode.

Steve Franks wrote five episodes, while Andy Berman wrote four and Kell Cahoon, Saladin K. Patterson, and James Roday wrote three. Returning for two episodes each were writers Tim Meltreger and Anupam Nigam. Bill Callahan and Todd Harthan joined the writing team, with Callahan writing three episodes, and Harthan writing one.