The comic strip Dick Tracy has introduced numerous characters.

Allies

Tracy family

Professional comrades

Dick Tracy's Police Department

Dick Tracy's City and the Police Department it is part of is never named, although there are hints it is based upon Chester Gould's residence of Chicago Illinois. It is beside a large bay/lake. It is located in a midwestern state close to Ohio. Police Chiefs in Dick Tracy comic Strip 1920–2020 Five members of the police have been exposed as either corrupt or having ties with "The Apparatus" [i.e. Organized Crime]

Personal acquaintances

Enemies

Archie tie-ins

In the 1970s, Archie's TV Funnies had cartoon "shorts" of Dick Tracy episodes. Guest villains included B.B. Eyes; The Brow; 88 Keys; the Mole; Mumbles; Pearshape Tone; Shaky; Shoulders; Sketch Paree. Cameos included appearances by Tess Trueheart, Moon Maid, B.O. Plenty, Mrs. Van Hoosen, Lizz Grove, Sam Catchem and Chief Patton. Likewise, an episode (1/8) of the Josie and the Pussycats cartoon series had an episode in which the musicians are chased by a "Blank" (faceless) criminal called the Mastermind.