In the DC Comics Universe, there are a plethora of heroes that exist, from Superman, to Wonder Woman, to Batman. However, one character that exists in the DC Universe that is a complete shock comes from the world of Futurama: Zoidberg.
Futurama is a beloved animated series from Matt Groening and David X. Cohen that aired on Fox in the early 2000s and was brought back to life by Comedy Central from 2008 to 2013. The series focused on Philip J. Fry awakening after 1000 years of being cryogenically frozen. Now in the 31st Century, he works for the Planet Express, a space delivery company that goes on dangerous and wacky missions. Fry adventured alongside Leela, Bender, Zoidberg, Amy, Professor Farnsworth, Hermes Conrad - and a handful of great supporting characters. Futurama was critically acclaimed and ran for 140 episodes. When it was brought back to life in movie form in 2008, Zoidberg crossed over into the world of DC Comics.
In Action Comics #863 (2008) by Geoff Johns, Gary Frank, Jon Sibal, Dave McCaig, and Rob Leigh, Superman is in the 30th Century with the Legion of Super-Heroes. He's brawling with the villainous Earth-Man as aliens on Earth are rounded up by police officers. When Superman tries to set aliens free, an officer tells him Superman wouldn't help them and that he's for human rights. Superman tells him "I'm for everyone... and you should know that, officer," as he manages to convince the officer to let the aliens go and continues to fight Earth-Man. One of those aliens who was captured and freed by Superman happens to be Zoidberg.
There's no doubting that's Zoidberg. Not only does he look exactly like him, but he's got the same lab coat and even the same amount of toes in his trademark pair of flip flops. Plus, the story does take place during the 30th Century, so the timeline isn't super far off. While Zoidberg doesn't have any dialogue, it's a great nod to Futurama by Frank.
Zoidberg's appearance in the DC Comics Universe begs the question: Do other Futurama characters exist in the universe as well? I'd love to see Bender come face-to-face with Superman and tell him to "bite my shiny metal ass." While a future crossover is unlikely, especially now that Futurama is off the air, it's wonderful that in this issue, they found the time to fit in the secret cameo. Zoidberg is in the DC Universe and this panel is definitive proof.