Astonishing Tales began as a split title with solo features starring the jungle lord Ka-Zar and the supervillain and monarch Doctor Doom in 10–page stories each.

The creative team of "Doctor Doom" was initially composed of writer Roy Thomas and penciler-inker Wally Wood, a veteran of 1950s EC Comics stories and one of the early, signature artists of Daredevil.

[2][3] "Ka-Zar" was initially by the longstanding and highly influential team of writer and Marvel editor-in-chief Stan Lee and penciler and co-plotter Jack Kirby, the duo who had introduced the jungle lord years before as a one-issue supporting character in The X-Men.

After that initial story, Roy Thomas scripted the second installment, with the team of writer Gerry Conway and penciler Barry Windsor-Smith taking over for issues #3–6.

[2] A variety of creative teams followed, with Lee, Thomas, Conway and Len Wein individually writing or collaborating on stories before Mike Friedrich became regular writer with issue #14 (Dec. 1972).

Pencilers included Dan Adkins, Rich Buckler, Gil Kane, and John Buscema, plus a Buscema-Neal Adams collaboration on one issue.

The Living Colossus",[9] starring a stone giant introduced in an anthological science fiction-monster story in Tales of Suspense #14 (Feb. 1961), with a sequel in issue #20 (Aug. 1961).

[2][10] The final feature in Astonishing Tales starred and introduced Deathlok, a conflicted cyborg who predated the popular film character RoboCop by several years.

Created by artist Rich Buckler, who devised the initial concept, and writer Doug Moench,[11] the feature ran from #25–28 and 30–36 (Aug. 1974 – Feb. 1975 and June 1975 – July 1976), the final issue.

[14] Issue #29 (April 1975) was a fill-in that reprinted an edited version of the first Guardians of the Galaxy story, from Marvel Super-Heroes #18 (Jan.

2 - Look Homeward, Avenger Collected in Doctor Doom: The Book of Doom Omnibus Reprinted from Lorna, The Jungle Girl #14 Reprinted from Lorna, The Jungle Girl #14 Collected in Marvel Masterworks: Ka-Zar Volume 1; Marvel Masterworks: The Man-Thing Vol.