Cracker is a British crime drama series produced by Granada Television for ITV, created and principally written by Jimmy McGovern. Set in Manchester, the series follows a criminal psychologist (or "cracker"), Dr Edward "Fitz" Fitzgerald, played by Robbie Coltrane, who works with the Greater Manchester Police (GMP) to help them solve crimes.

The show consists of three series, originally broadcast from 1993 to 1995. A 100-minute special set in Hong Kong followed in 1996 and another two-hour story in 2006. The show won the British Academy Television Award for Best Drama Series in 1995 and 1996, and Coltrane received the British Academy Television Award for Best Actor in three consecutive years (1994 to 1996).

Fitz is Scottish of Irish origin, alcoholic, a chain smoker, obese, sedentary, addicted to gambling, manic, foul-mouthed and sarcastic, yet cerebral and brilliant. He is a genius in his speciality: criminal psychology. As Fitz confesses in "Brotherly Love": "I drink too much, I smoke too much, I gamble too much. I am too much."

Each case spanned several episodes and cliffhangers were quite often used, but it was not until the end of the second series that a cliffhanger was employed to tie off the series. Some of the plotlines in the cases took as their starting point real events such as the Hillsborough disaster, whilst others were purely fictional with only tangential ties to actual events.

Several different psychotic types were explored during the run of the show with increasingly complex psychological motivations that, as the series entered the middle of the second series, began to expand beyond the criminals being investigated to the regular cast members. As the series moved forward, the storylines became as much about the interactions of the regulars as they were about the crimes. In many later episodes the crimes often became background to intense, provocative explorations of the police officers' reactions to the crimes they investigated.

To emphasise how fine a line the police (and Fitz) walk in their close association with criminals, all three series featured several stories in which the police become victims of crime or themselves commit criminal acts such as murder, rape, obstruction of justice and assault and battery.

Several well-known actors appeared over the course of the series, including Adrian Dunbar, Jim Carter, Maureen O'Brien, James Fleet, David Bradley, John Simm, Liam Cunningham, Robert Carlyle, Samantha Morton, Bríd Brennan, John McArdle, Tim Healy, Geoffrey Hutchings, David Calder, Paul Barber and David Haig. Beryl Reid made her penultimate screen appearance in the first series, with a cameo as Fitz's mother.

The first two series were written by Jimmy McGovern, excepting the fifth serial, "The Big Crunch", which was contributed by Ted Whitehead. Claiming that he had "nothing more to write about”, McGovern originally planned to leave after the second series but was allowed to write the controversial rape storyline, "Men Should Weep", when he agreed to contribute a three-part story to the third series. Two of McGovern's stories, "To Say I Love You" and "Brotherly Love" (from the first and third series respectively), received Edgar Awards from the Mystery Writers of America. Each serial had a different director, with the exceptions of "To Be a Somebody" and "True Romance", both directed by Tim Fywell.