Sidewinder witnessed the group defeat at the hand of Captain America and freed them so they could join the society. The team was actually in the employ of Viper, who used this as an opportunity to take over the Society.
Viper failed, but Copperhead, Fer-de-Lance, Puff Adder, and Black Racer remained with the Society. Copperhead later left due to conflict with the Cobra.
- Viper (Ophelia Sarkissian)
- Black Racer (Ariana Saddiqi), has the power of super speed, Black Racer first joined the fourth Serpent Squad, robbing a casino in Las Vegas.
- Copperhead (Davis Lawfers), wears a suit of armor that is equipped with weaponry and affords him some degree of protection. Copperhead was ordered by the Viper to infiltrate the Serpent Society.
- Puff Adder (Gordon Fraley), is a mutant with Puffadder like powers,depowered after M-Day.
- Fer-de-Lance (Teresa Vasquez), is skilled in hand-to-hand combat, and the use of sharp weapons, including her talons.
All members later joined the Serpent Society
- 2 appearance(s) of Serpent Squad (Fourth Team) (Earth-616)
- 1 image(s) of Serpent Squad (Fourth Team) (Earth-616)
- 5 member(s) of Serpent Squad (Fourth Team) (Earth-616)