Mahkizmo first appeared in Fantastic Four #151 (October 1974), and was created by writer Gerry Conway and artist Rich Buckler.

[1] The character subsequently appears in The Sensational She-Hulk #34 (December 1991), #38-39 (April–May 1992), Fantastic Four: Foes #1 (March 2005), #5-6 (July–August 2005).

[volume & issue needed] Mahkizmo survives the implosion as an intangible and invisible entity, and is angered that the people of the merged world were living peacefully.

In issue #39, it was revealed that Mahkizmo did not know how babies were conceived, and hence had not realized that his plan to kill all women would prevent future generations from being born.

[4] Mahkizmo later battles Captain Marvel when she is transported to an apocalyptic version of Roosevelt Island.