For his screentest for the network President Tom Miller, Burt Reynolds did a scene with Louise Sorrell as a psychiatrist, and Gene Hackman as the heavy. Once it was optioned a short while later, the pilot episode featured Sorrell and Hackman.
Jon Voight, Louise Sorrell, Gene Hackman, and Robert Duvall appeared in episodes. Billy Dee Williams uttered a single word in one episode and Burt Reynolds' close friend Charles Durning showed up as an extra in a police uniform on several episodes.
The show was filmed on the streets of New York City, as opposed to a studio lot. Things looked so real, that one night three NYPD cops joined in one scene and billy clubbed three extras they mistook for fleeing thieves.
Since ninety percent of the show was filmed on the streets of New York City. Regular people were always calling the cops reporting robberies, shoot-outs, and chases. Burt Reynolds stated they got away with murder. "But that's why it was so much damn fun."
The last three days of each week, Burt Reynolds worked round the clock on this show. He would be up all night with one crew, then do another twelve hours with a second crew. He never billed the studio for the overtime, as he believed the studio would not have been able to afford the show if he had.