He appears to have no relation to Cain Marko, seen in various Marvel titles as the Juggernaut, despite similarities in surname, physique and superpowers.

Unfortunately, for them, Millie's father is the agent for Power Man and Iron Fist, who were called in to defeat the villains.

Man Mountain Marko later assisted Caesar Cicero's men into attacking Luke Cage and Big Ben Donovan.

[4] During a trip to gather protection money, Marko has some sort of breakdown and trashes an entire bar, with Spider-Man inside of it.

Investigative reporter Ben Urich tells Spider-Man that Marko has apparently also kidnapped a child.

[5] Man Mountain Marko is later seen as a sexually threatening hitman sent after private investigator Jessica Jones.

[6][7] This was part of a conspiracy by a powerful business magnate who wished to use Jones and Captain America as a way to humiliate the current president of the United States.

[9] During the "Manifest Destiny" storyline, Marko develops a singing career focusing on the concept of violence against female super-heroes.

[10] During the "Dark Reign" storyline, Marko is later sent by Norman Osborn as part of a fact finding mission to an 'Atlas' facility run by a younger Jimmy Woo.

[15] Spider-Man 2099 subsequently tracks the escaped Man Mountain Marko down and beats him to near-death while demanding to know where to find Lorraine.

[16] Marko is recovered by the Fist, an offshoot of the Hand which heals him and further augments his strength and durability using technology provided by Tyler Stone.

[19] Captain America later caught Speed Demon where he confessed to his and Man Mountain Marko's robbery of the pawn shop.

[22] Man Mountain Marko has been shown to have superhuman strength, stamina, and sturdiness roughly comparable to, if not slightly exceeding, those of Spider-Man.

After the destruction of the Raft prison by Juggernaut, Man Mountain Mario helps defend Crossbones from thugs.