Next week, Fox's Gotham returns from a six-week hiatus to close out their first season with the final five episodes, starting on Monday, April 13. The show has already been picked up for Season 2, which will feature a number of iconic villains, according to the producers, who attended WonderCon 2015 this weekend to promote the show. Producer John Stephens revealed at the convention that the show is bringing in DC Comics villains such as Mr. Freeze, Clayface and the Mad Hatter in Season 2. Here's what he had to say below.

"We always want to walk the fine line of the reality of our world. Walking right up to that line where super-villains live. So there are a lot of characters from Batman lore that fit that bill. People like Victor Freeze - who's a science villain. You can play a lot of his abilities without going into the world of superheroes. Clayface and Mad Hatter are both villains we're going to bring in [as well]. They both have great backstories and great personalities. Clayface especially is a character I want to [explore the origin of]."

The producer also talked about the need to keep these heroes and villains fresh for fans who aren't familiar with the comic books.

"It's something [he] keeps in mind when [he's] telling origin stories. There's so much media about these [characters] but [I] want to approach it in a fresh new way."

Robin Taylor, who plays Oswald Cobblepot, reveals that his character and Jada Pinkett Smith's Fish Mooney have a reunion upon her eventual return to Gotham.

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"(They) have a reunion when she returns to Gotham. He learned everything about Gotham City from her. Even though that relationship is fraught and dramatic, Oswald still respects her."

Ben McKenzie also revealed that he doesn't think his character Jim Gordon will ever become a corrupt cop.

"Gordon will never become corrupt per se. I think the more complicated question is how far will he go? Will he decide the ends justify the means? How much bad will he do to do good? I think that's the evolution or devolution of the character throughout the series. In order to fight the bad guys, he has to get into the muck and get a little dirty himself."

John Stephens also talked about how David Mazouz's Bruce Wayne character will evolve next season.

"That's one of the fun things we're looking forward to next year. The Bruce Wayne we all know - there's a duality to his persona. There's 'Batman' and there's 'Bruce Wayne'. That fake playboy carefree Bruce Wayne [persona]. In season two, you're going to start to see that 'Bruce Wayne' persona develop as he starts to create a public face to hide who he actually is. So we get to watch that schism take place."

When asked if the Court of Owls ever appear on the series, John Stephens had this to say.

"The Court of Owls is something we've discussed a lot. We keep digging up very close to it without quite pulling the trigger. It's clear that there is a group of shadowy individuals that control and influence Wayne Enterprise and have great power in Gotham and may or may not be connected to Carmine Falcone. Is that The Court of Owls? Maybe... Keep watching and those questions will be answered."