The Penguin is packed with Easter eggs that hint at some potential villains who could show up in Matt Reeves' The Batman Part II, including Clayface, Poison Ivy and Doctor Strange.

As Oz and Sophia team up with Dr. Bloom to make and distribute Bliss, DC drops multiple Easter Eggs and DC references all through the story for the fans.

Episode 4 of The Penguin, 'Cent'Anni,' tells us all about Sofia Falcone, and introduces us to her friend in prison, Magpie, who is also a Batman villain.

It feels counterintuitive, but it’s quite a joy knowing that you don’t have to hunt through the Batman spin-off looking for Easter eggs. Here’s a great example: Episode 4 took viewers to Arkham Asylum and didn’t show us the Joker.

The following contains spoilers for The Penguin Season 1, Episode 4, now streaming on Max. In 2022, Matt Reeves' The Batman rebooted the franchise and wasted no time filling the streets of Gotham City with notable villains.