Baron Brimstone teamed up with Snake and Hammer Harrison to form the Satan Squad in a series of crimes that would enable him to mass-produce the Sol-Mac weapon. When Satan Squad member Duke Dawson tried to rat out Brimstone to Pamela Quinn of Delmar Insurance Company, Snake and Hammer confronted them, and Snake wrapped his body around Dawson, crushing him to death. They turned Pamela over to Baron Brimstone. Later, Hammer and Snake led the Satan Squad in an attempt to steal the golden bell of the cathedral St. Gabriela of the Highlands, only to be confronted by Machine Man. Snake tried to wrap himself around the robot, but Machine Man spun himself at a terrific speed, hurtling Snake into the Satan Squad. Machine Man went on to defeat Baron Brimstone. 
Snake and Hammer were recruited into the Enforcers by the Arranger, the Kingpin's top man. The original Enforcers were initially hesitant to accept them, but they proved their abilities in a brief scuffle with the others, and then they were formally welcomed by Fancy Dan, Montana and Ox . The Arranger charged the Enforcers with the task of maintaining the Kingpin's extortion rackets, and the team made good on that in the days that followed, threatening and beating store owners and burning down property. When one of their targets was candy store owner Roberto Cassada, they provoked the ire of the Sandman, who was renting a room from Cassada's family. The Enforcers happened to run into Spider-Man, and managed to defeat him with their superior numbers. They chained him up and brought him to their hideout so that he could be turned over to the Kingpin, but Sandman came to Spider-Man's rescue. Snake was knocked out by Spider-Man.
During the Civil War event, he was captured by Baron Zemo's Thunderbolts and forced to join them or face jail time. He attended a practice session held by the Andreas von Strucker.Marston joined Thunderbolts army recruits Aqueduct, Killer Shrike, Slyde and Ox in battling citizens of Sydney, Australia who had been overcome by the energies unleashed by the Universal Wellspring.
Powers and Abilities
Marston is a contortionist who can entwine his body around objects and other people.
- 9 appearance(s) of Sylvester Marston (Earth-616)
- 1 mention(s) of Sylvester Marston (Earth-616)
- 4 image(s) of Sylvester Marston (Earth-616)