Psych is an American detective comedy-drama television series created by Steve Franks and broadcast on USA Network. It is produced by Franks and Tagline Television's Chris Henze & Kelly Kulchak. The series stars James Roday as Shawn Spencer, a young crime consultant for the Santa Barbara Police Department whose "heightened observational skills" and impressive detective instincts allow him to convince people that he solves cases with psychic abilities. The program also stars Dulé Hill as Shawn's best friend and reluctant partner Burton "Gus" Guster, as well as Corbin Bernsen as Shawn's captious father, Henry.
Actor: James Roday
Shawn Spencer (James Roday) is a freelance consultant with the Santa Barbara Police Department, pretending to be a psychic. However, it is really his exceptional observational skills and eidetic memory that allow him to obtain his "visions". He refuses to take anything seriously, though has matured slowly throughout the seasons.
Actor: Dulé Hill
Burton "Gus" Guster (Dulé Hill) is Shawn's best friend since childhood as well as business partner. He also is a pharmaceuticals salesman. Unlike Shawn, he takes his work very seriously, playing the "straight man" and usually tries to act professionally, yet in later episodes he ends up as invested in jokes and snacks like Shawn. He is famous for his many aliases (usually given to him by Shawn), including "Magic Head", "Lavender Gooms", "Ghee Buttersnaps", and "Control Alt Delete". He is known for being attracted to all types of women, who usually end up as the criminal. He is also known for his super sensitive nose, the "Super Sniffer" or "Super Smeller".
Actor: Corbin Bernsen
Henry Spencer (Corbin Bernsen) is Shawn's uptight and precise father and a former police sergeant. He trained Shawn on everything about being a detective, going so far as teaching him to remember the layout of a room with his eyes closed and beating a lie detector. He is usually visited by Shawn with questions about various cases, but is usually reluctant to help.
Actor: Maggie Lawson
Juliet "Jules" O'Hara (Maggie Lawson) is a junior detective for the Santa Barbara Police Department, and is Lassiter's partner. She joined the SBPD after Lassiter's old partner got transferred after the pilot episode, and was originally a cop in Miami. Throughout the series she and Shawn share constant romantic tension, and the two start dating in season 5.
Actor: Timothy Omundson
Carlton "Lassie" Lassiter (Timothy Omundson) is the head detective for the Santa Barbara Police Department. He is skeptical of Shawn's psychic abilities, and is extremely annoyed by Shawn's comic antics. However, he once secretly confessed to Shawn while drunk that he respects him and because of this he occasionally comes to Psych for help with his more difficult cases.
Chief Karen Vick
Actor: Kirsten Nelson
Chief Karen Vick (Kirsten Nelson) is the SBPD Chief. She is tough but fair, usually reluctant to hire Shawn and Gus for cases, but almost always gives in. She respects Shawn's help and input but firmly keeps him in check (as much as she can) when he pushes the limits of the law or her patience.