The members of A-Next are:
Thunderstrike: Kevin Masterson, the son of Eric Masterson, the original Thunderstrike.
Mainframe: A mysterious figure, with possible ties to the original Iron Men.
J2: Zane Yama, the son of Cain Marco, the unstoppable Juggernault.
Stinger: Cassie Lang, the daughter of of Scott Lang, the second Ant-Man.