Peacemaker episode 4 "The Choad Less Traveled" picks up almost exactly where the third episode left viewers, as Peacemaker and the new Task Force X team travel back to base after having their first encounter with Butterflies. The episode largely revolves around Cena's Chris Smith and Vigilante (Freddie Stroma), as Chris learns of his dad's arrest and Vigilante gets the idea to kill Auggie Smith a.k.a. White Dragon (Robert Patrick) to free Chris of his evil. Peacemaker episode 4 also shows Leota Adebayo (Danielle Brooks) coming to grips with everything that this job requires. It all builds to Vigilante being freed from prison despite his attempt to kill Peacemaker's father, Chris struggling with the demons of his childhood, and the reveal that Clemson Murn (Chukwudi Iwuji) is a Butterfly.

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Throughout the action and story-packed 50 minutes of television, Peacemaker episode 4 also included plenty of DC references. They range from direct namedrops of characters from DC Comics to background details pointing to something from the extensive comic history. There are even some DCEU Easter eggs hidden throughout. Here's a guide to every Peacemaker episode 4 Easter egg and DC Comics reference.

Matter-Eater Lad

The first major Peacemaker episode 4 DC reference came in a conversation between Peacemaker and Murn. The peace-loving supervillain mentions that he once had to team up with Matter-Eater Lad, which has twisted his sense of what's normal. Matter-Eater Lad is a character from DC Comics created by Jerry Siegel and John Forte. Matter-Eater Lad, also known as Tenzil Kem, first appeared in Adventure Comics #303 in 1962. His power is that he can eat anything, no matter how indestructible or dangerous it is supposed to be. Matter-Eater Lad is part of the Legion of Super-Heroes often in the comics, although he's also been reduced to a government agent at other points. Based on how Peacemaker mentions that Tenzil and peacemaker teamed up in the past, it is possible that Matter-Eater Lad is currently incarcerated in Belle Reve and went on a Suicide Squad mission with Peacemaker in the past. Otherwise, it seems Peacemaker's pre-The Suicide Squad adventures included an unexpected Matter-Eater Lad team-up.

A Possible Gorilla Grodd Tease

Peacemaker episode 4 might have also teased an origin for Gorilla Grodd in the DCEU. The well-known Flash villain is a super-intelligent gorilla who has telepathic powers to control other people's minds. Grodd gained these abilities after encountering an alien spaceship. The character was created by John Broome and Carmine Infantino in 1959's The Flash #106. Peacemaker spends a surprising amount of time highlighting that Charlie the gorilla has been stolen from the local zoo. Although Grodd's origin took place in Africa, the DCEU HBO Max show could be referencing the villain and giving Flash's gorilla villain a new backstory. This gorilla could encounter one of the Butterflies or another alien spaceship and become the villain known as Gorilla Grodd. Or, perhaps Gorilla Grodd already exists and stole this ape to bolster his gorilla army.

White Dragon's Costume Debuts

Viewers also see a clear DC reference when Peacemaker episode 4 shows White Dragon's comic costume. The white and red costume for Auggie Smith's white supremacist supervillain is a fairly accurate creation based on the comics. However, Peacemaker had to make some changes to simply some of the suit's more outlandish elements, like its shoulder guards. The series is reinventing White Dragon by combining the mantle with Peacemaker's father, who was a Nazi in the comics but not a costumed supervillain. In the comics, the White Dragon costume gave Daniel Ducannon enhanced strength and durability, and it also helped him channel his flame powers. It is unclear if Auggie Smith has the fire abilities of White Dragon's comic counterpart, but Peacemaker does make it clear he has the right suit for the name.

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Batman's Impressive Rogues' Gallery

James Gunn also includes a shoutout to Batman's impressive rogues' gallery in Peacemaker episode 4. This comes when Chris goes back to his father's house and has another encounter with the neighbor who views him as a villain. The neighbor questions if Peacemaker has a coterie of supervillains like Batman to prove that he is a superhero. The neighbor rattles off villains like Joker, Riddler, and Mad Matter. While this leads to Peacemaker questioning the effectiveness of Suicide Squad, but Riddler and Mad Hatter have not appeared in a DCEU production so far. Perhaps Edward Nygma and Jervis Tetch are set to appear in an movie though.

Ultra Bunny Dashboard Figure Connects To Rick Flag

Peacemaker's decision to kill Rick Flag in The Suicide Squad is also once again referenced in Peacemaker episode 4. While the memory of Flag's death flashes across the screen near the end, it is actually Vigilante's car that features the first reminder of Rick Flag. This comes with Vigilante's dashboard figure of Ultra Bunny, a fictional character Gunn created for The Suicide Squad. Rick Flag wore a T-shirt with Ultra Bunny on it for most of the movie, including when Peacemaker killed him. Vigilante's Ultra Bunny figure can be seen holding an English version of the sign shown on Flag's shirt, which reads "Obstacles are opportunities."

Hades' Hell Hound Cerberus

There is another subtle DC Comics Easter egg included in Peacemaker episode 4 that references the hell hound known as Cerberus. The reference can be seen on the outside of Task Force X's building, as various posters are shown that say Cerber-wuss with a three-headed dog beneath it. It's unclear what the poster stands for in the DCEU world, such as a band, but the reference to Cerberus is quite clear upon further examination. Cerberus is a three-headed hell hound who guards the Underworld for Hades. The devil dog is pulled from Greek mythology but has fought various DC characters in the comics, including Aquaman.

Atomic Age of Comics

Peacemaker episode 4 also includes a more general reference to DC Comics and the comic industry at large. During Peacemaker's fight with Judomaster, a large moving van for a company called Atomic Age can be seen in the parking lot. This appears to be a reference to the Atomic Age of comics, which is considered to be from 1950 to 1960 near the end of the Golden Age. The Atomic Age name came from science-fiction comics leaning heavily into stories about atomic power after World War II. DC made many comics during this time period but also published two issues of Superman: The Atomic Age Sundays.

More: Peacemaker Episode 4's Ending Creates A Huge Butterfly Plot Hole

Peacemaker releases new episodes Thursdays on HBO Max.