It Takes a Thief (1968)

Jack Regan, an unethical officer of the Flying Squad, uses unorthodox methods to pursue criminals with the help of his partner, George Carter.

Framed for murder, Detective Reno Raines becomes a fugitive bounty hunter who fights crime while trying to clear his name. His troubles began after he testified about police corruption, leading Lt. Donald Dixon to set him up.

Sergeant “Pepper"” Anderson, an undercover cop for the Criminal Conspiracy Unit of the Los Angeles Police Department, poses undercover from mob girl to prostitute.

Hardcastle and McCormick is an American action/drama television series from Stephen J. Cannell Productions, shown on ABC from 1983 through 1986. The series stars Brian Keith as Judge Milton C. Hardcastle and Daniel Hugh Kelly as ex-con and race car driver Mark "Skid" McCormick. The series premise was somewhat recycled from a previous Cannell series, Tenspeed and Brown Shoe.

The Mod Squad was the enormously successful groundbreaking "hippie" undercover cop show that ran on ABC from September 24, 1968, until August 23, 1973. It starred Michael Cole as Pete Cochren, Peggy Lipton as Julie Barnes, Clarence Williams III as Linc Hayes, and Tige Andrews as Captain Adam Greer. The executive producers of the series were Aaron Spelling and Danny Thomas. The iconic counter-culture police series earned six Emmy nominations, four Golden Globe nominations plus one win for Peggy Lipton, one Directors Guild of America award, and four Logies. In 1997 the episode "Mother of Sorrow" was ranked #95 on TV Guide's 100 Greatest Episodes of All Time.

Danger Man is a British television series which was broadcast between 1960 and 1962, and again between 1964 and 1968. The series featured Patrick McGoohan as secret agent John Drake. Ralph Smart created the programme and wrote many of the scripts. Danger Man was financed by Lew Grade's ITC Entertainment.

Mannix is an American television detective series that ran from 1967 through 1975 on CBS. Created by Richard Levinson and William Link and developed by executive producer Bruce Geller, the title character, Joe Mannix, is a private investigator. He is played by Mike Connors. Mannix was the last series produced by Desilu Productions.

A former DEA agent forced into early retirement runs a gift shop in in the Philippines. Despite his best efforts to begin a tranquil new life, he’s pulled back into a world of dangerous people and deadly situations, either through his friends in the local police department or running into people from his old life. And the problem is: he likes it.

Michael Long, an undercover police officer, is shot while investigating a case and left for dead by his assailants. He is rescued by Wilton Knight, a wealthy, dying millionaire and inventor who arranges life-saving surgery, including a new face and a new identity--that of Michael Knight. Michael is then given a special computerized and indestructible car called the Knight Industries Two Thousand (nicknamed KITT), and a mission: apprehend criminals who are beyond the reach of the law. The series depicts Michael's exploits as he and KITT battle the forces of evil on behalf of the Foundation for Law and Government.

Streetwise Detective David Starsky partners up with a more intellectual partner, Kenneth 'Hutch' Hutchinson, to protect citizens and patrol the streets of Bay City.