The concept of teaming the Thing with a different character in each issue was given a test run in Marvel Feature #11-12 and proved a success.

[3] Artist Ron Wilson began his long association with the title with issue #12 (November 1975) and worked on it throughout its run.

[4] With issue #17, the series had a crossover with Marvel Team-Up #47, which featured Spider-Man.

[6] The "Project Pegasus" storyline in Marvel Two-in-One #53-58 saw the introduction of the name "Quasar" for the Wendell Vaughn character[7] and the transformation of Wundarr into the Aquarian.

[9] Comics creators who contributed to the series include Steve Gerber, Jack Kirby (who did pencils on several covers during its run), Marv Wolfman, John Buscema, John Byrne, Frank Miller, and George Pérez.