Webb had a featured role as a crime-lab technician in the 1948 film
He Walked by Night, based on the real-life murder of
California Highway Patrolman Loren Cornwell Roosevelt by
Erwin Walker. The film was produced in
semidocumentary style with technical assistance provided by Detective Sergeant Marty Wynn of the Los Angeles Police Department. The film’s fictionalized recounting of the 1946 Walker crime spree gave Webb the idea for
Dragnet, a series based on real cases from LAPD police files, featuring authentic depictions of the modern police methods, mannerisms, and technical language. With much assistance from Wynn and LAPD chief
William H. Parker,
Dragnet premiered on NBC Radio in 1949 and ran until 1957. It was also picked up as a television series by
NBC, which aired episodes each season from 1952 to 1959. Webb played Sgt.
Joe Friday and
Barton Yarborough co-starred as Sgt. Ben Romero. After Yarborough's death,
Ben Alexander joined the cast. in
Dragnet 1968 Webb was a stickler for detail. He believed viewers wanted "
realism" and tried to give it to them. Webb had tremendous respect for law enforcement personnel. He often said in interviews that he was angry about the "ridiculous amount" of abuse to which police were subjected by the press and the public. Webb was also impressed by the long hours, the low pay, and the high injury rate among police investigators of the day, particularly in the LAPD, which had by then acquired a notorious reputation for jettisoning officers who had become ill or injured in the line of duty. In Webb's book,
The Badge, one of Erwin Walker's victims, LAPD detective Lt. Colin Forbes was the recipient of such treatment. In announcing his vision of
Dragnet, Webb said he intended to perform a service for the police by showing them as low-key working-class heroes.
Dragnet moved away from earlier portrayals of the police in shows such as
Jeff Regan and
Pat Novak, which had often shown them as brutal and corrupt.
Dragnet became a successful television show in 1952.
Barton Yarborough died of a heart attack in 1951, after filming only two episodes, and
Barney Phillips (Sgt. Ed Jacobs) and Herbert Ellis (Officer Frank Smith) temporarily stepped in as partners. Veteran radio and film actor Ben Alexander took over the role of jovial, burly Officer Frank Smith. Alexander was popular and remained a cast member until the show's cancellation in 1959. In 1954, a full-length feature-film adaptation of the series was released, starring Webb, Alexander, and
Richard Boone. The television version of
Dragnet began with this narration by
George Fenneman: "Ladies and gentlemen, the story you are about to see is true. The names have been changed to protect the innocent." Webb would intone, "This is the city: Los Angeles, California." He would then make a historical or topical point, describe his duties, his partner, and superior on the episode. The radio series had a similar opening, though Webb, as Friday, did not give a unique Los Angeles-themed opening. Webb then set the plot by describing a typical day and then led into the story. "It was Wednesday, March 19th. It was cool in Los Angeles. I was at headquarters, working narcotics ..." At the end of each show, Fenneman repeated his opening narration, revised to read: "The story you have just seen is true. The names were changed to protect the innocent." A second announcer,
Hal Gibney, usually gave dates when and specific courtrooms where trials were held for the suspects, announcing the trial verdicts after commercial breaks. Many suspects shown to have been found guilty at the end were also shown as having been confined at
San Quentin State Prison. Webb frequently recreated entire floors of buildings on sound stages, such as the police headquarters at
Los Angeles City Hall and a floor of the
Los Angeles Herald Examiner. During
Dragnets early days, Webb continued to appear in movies, notably as Artie Green, the best friend of
William Holden's character in the 1950
Billy Wilder film
Sunset Boulevard. The character Green was an assistant director and fiancé to script reader Betty Schaefer (played by Nancy Olson). In
Dark City, Webb played a vicious
card sharp and Harry Morgan a punch-drunk ex-fighter, in contrast to the pair's straight-arrow image in the later
Dragnet. Also in 1950, Webb appeared in
The Men, Marlon Brando's debut film. Both actors played paraplegics undergoing rehabilitation at a veterans' hospital. In a subplot, Webb's character, a cynical intellectual, is fleeced of his life savings by a woman who feigns romantic interest. In 1951, Webb introduced a short-lived radio series, ''
Pete Kelly's Blues'', in an attempt to bring the music he loved to a broader audience. That show became the basis for a 1955
film of the same name. In 1959, a television version was made. Neither was very successful. The character of Pete Kelly was a
cornet player who supplemented his income from playing in a nightclub band by working as a private investigator. ==1962-1963==