Read more about Man-Mountain Marko at: Wikipedia

Official Site: Marvel

Man Mountain Marko (Michael Marko) is a Marvel Comics supervillain. Marko was and remains an affiliate of numerous organized-crime entities in the Marvel universe, including the Maggia. He was originally introduced as the right hand man of Silvermane in The Amazing Spider-Man #73 and created by Stan Lee and John Romita, Sr..

He was allied with Silvermane, Caesar Cicero, the Eel, and Nightshade. His most frequent enemies are Spider-Man, Power Man, Iron Fist, Thunderbolt, and Boomerang.

Marko is first seen as Silvermane's loyal lieutenant in an incident dealing with an ancient tablet. He is quickly defeated by Spider-Man.

Marko, along with the villains Eel, Discus and Stiletto rob the Debutante Ball of Millie Hogarth. 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 has not been a contender in any CBUB matches.