WARNING: This article contains spoilers for the latest episode of Gotham, "That Old Corpse."
We don't really want to say "we called it," but yeah, we pretty much called it.
Earlier in the week, Fox released a new promo for its upcoming episode of Gotham, "That Old Corpse." This promo not only teased the story of the episode, it featured an intriguing look at a masked woman wearing a court jester-inspired costume, with faint overtones of red and black. Our best guess was that the woman underneath the mask was Jeremiah Valeska's personal assistant and guard, a woman by the name of Ecco who was introduced on Gotham a few episodes prior.
"That Old Corpse" begins with this harlequin-clad woman crashing a party held by some of Jerome's devout followers at the proto-Joker's grave. There, she plays a recorded message for the crowd, one delivered by Jerome from beyond the grave. As chaos ensues at the GCPD, we later see this masked woman again, back at Jeremiah's bunker. There, Jim Gordon knocks her unconscious, and he removes the mask to reveal that, lo and behold, Ecco is the one underneath the red and black costume.
However, the real kicker of the episode comes later, in a twist that we didn't see coming at all. It's a twist that not only cements Gotham's next big bad, but one that also gives Batman fans something they've long waited to see on the show: a Joker and Harley Quinn team-up.
In the final moments of the episode, when Jim Gordon watches a recorded video message left by Jerome, the twist comes as a veritable punchline. Jerome removes the scars on his face, and his voices stops sounding so high-pitched. Before long, we realize the real truth: Jerome never left any messages, on tape or on video. It was all Jeremiah, who dispatched his assistant in a harlequin costume to recruit Jerome's followers, and who set a trap for Jim Gordon.
Next, we see Jeremiah and Ecco reunite at a Wayne Research facility, where they don't hesitate to shoot the guards in a Bonnie-and-Clyde kind of way. There, Ecco, wearing her fainted red and black costume (which also bears a familiar diamond-shaped design), and Jeremiah, wearing a dapper purple suit and yellow tie, start the next phase of their plan to terrorize Gotham. And as they do so, we now see that this entire episode was a scheme, a long joke planned by Jeremiah and his partner Ecco. But Batman fans recognize this partnership for what it is: the very first team-up of Joker and Harley Quinn on the series.
She may not be Harleen Quinzel, and he may not be the classic Mister J from the comics, but there is no doubt about it. After a few false starts and deceptions, Gotham finally delivered on a promise made long ago, by giving us the first proto-Harley Quinn and Joker team-up.
Airing Thursdays at 8 p.m. ET/PT on Fox, Gotham stars Ben McKenzie as James Gordon, Donal Logue as Harvey Bullock, David Mazouz as Bruce Wayne, Robin Lord Taylor as Penguin, Camren Bicondova as Selina Kyle, Erin Richards as Barbara Kean and Sean Pertwee as Alfred Pennyworth.