All of the Nick Carter volumes were published as Ace Charter edition. Note that the titles of the stories are reminiscent of the Man From U.N.C.L.E. story titles.
02592-7 NICK CARTER (house pseudonym for DAVID HAGBERG) Appointment in Haiphong (1982; 1st ACE Charter printing; cover by Gross)
09274-8 NICK CARTER (house pseudonym for MIKE JAHN aka MICHAEL JAHN) Cauldron of Hell (1981; 1st ACE Charter printing)
Michael Jahn appears to be a very prolific author. His pseudonyms include Mike Jahn under which he wrote a lot of TV or movie tie-in books. For instance "The Six Million Dollar Man" series for Berkley, "Switch" for Star and Berkley, "The Invisible Man" for Gold Medal, and "Rockford Files" for Popular Library. His other pseudonym includes Nick Carter - which is the house pseudonym used by author for the ACE series "Nick Carter."
14172-2 NICK CARTER (house pseudonym for JACK CANON) The Death Star Affair (1982; 1st ACE Charter printing)
52276-9 NICK CARTER The Mayan Connection: Killmaster #194 (1984; 1st ACE Charter printing)
The Killmaster series appears to be another Nick Carter spy thriller variant.
58866-2 NICK CARTER (house pseudonym for ROBERT E. VARDEMAN) Norwegian Typhoon (1982; 1st ACE Charter printing)
Robert E. Vardeman also writes in the fantasy and science fiction genres.
65176-3 NICK CARTER (house pseudonym for H. EDWARD HUNSBURGER) The Parisian Affair (1981; 1st ACE Charter printing)
70270-8 NICK CARTER (house pseudonym for DAVID HAGBERG) Race of Death (1978; 1st ACE Charter printing)
77413-X NICK CARTER (house pseudonym for ROBERT E. VARDEMAN) The Solar Menace (1981; 1st ACE Charter printing)
82407-2 NICK CARTER Triple Cross (1980; 1st ACE Charter printing)
Another venue NICK CARTER took was the silver screen - in Italy. There were (at least) two (2) movies based (very loosely) on these books (there appears to be more, but I am having a bit of difficulty determining if they are the same film, with different titles).
Italian Locandina movie poster (13" x 27") from the 1964 Henri Decoin French crime action adventure thriller starring Eddie Constantine (in the title role as Nick Carter), Daphne Dayle, Barbara Somers, Yvonne Monlaur, Margo Lion, Charles Belmont, and Paul Frankeur. Features Renato Casaro artwork.
Nick Carter et Le Trefle Rouge (released in English and U.S. as "Nick Carter and Red Club")
Italian Locandina movie poster (13" x 27") from the 1965 Jean-Paul Savignac French/Italian detective mystery crime action thriller starring Eddie Constantine (in the title role as Nick Carter), Jeanne Valerie, Nicole Courcel, Graziella Galvani, Graziella Galvani, Marcello Pagliero, and Jacques Harden.
The "Nick Carter" franchise appears to have extended farther into the past than I imagined. Here is the one-sheet (27" x 41") movie poster for the 1939 Jacques Tourner aviation airplane crime mystery (Metro Goldwyn Mayer Picture)