The last two DC heroes infected by the Batman Who Laughs to serve as part of his villainous Secret Six have been revealed in a video posted to the publisher’s official Superman Twitter account.
— Superman (@DCSuperman) August 29, 2019
The final two members of the Secret Six are Donna Troy and Jim Gordon. They join Shazam, Hawkman, Supergirl, and Blue Beetle to round out the heroes secretly subverted by the Batman Who Laughs as part of DC’s ongoing Year of the Villain story.
The new Secret Six are also the primary villains of the just-launched Batman/Superman ongoing title, with some of them even spinning off to solo one-shots.