WARNING: The following contains spoilers for M.O.D.O.K. Season 1, streaming now on Hulu.
Hulu's M.O.D.O.K. stop-motion animated series revolves around the Mental Organism Designed Only for Killing, a supervillain who's well known among Marvel comic book fans but otherwise far from a household name. An expert weapons designer with a gigantic head who uses a hover-chair or "Doomsday Chair" to get around, M.O.D.O.K. nearly made his live-action debut on Agents of S.H.I.E.L.D. before Marvel nixed those plans. He was similarly slated to serve as the Big Bad on the never-aired New Warriors TV series, with Keith David portraying the character.
Created by actor/comedian Patton Oswalt (who also voices M.O.D.O.K.) and writer Jordan Blum, the M.O.D.O.K. animated show follows the titular super-criminal as he takes on his greatest challenge yet: a mid-life crisis. Along the way, he and his family end up crossing paths with all manner of supervillains, many of which are even more obscure than he is. Here's a breakdown of all the relatively lesser-known evildoers that show up in M.O.D.O.K. Season 1.
Master Pandemonium
Created by Steve Englehart and Al Milgrom, Martin Preston/Master Pandemonium first appeared in 1986's West Coast Avengers #4. A successful B-movie actor, Martin lost his arm after getting into a drunk driving accident. He then made a deal with Mephisto to replace his limb, only for the latter to swap all of Martin's limbs for demon-shaped grafts and give him an inverted star-shaped hole in his chest, granting him command of the demons within him. Over the years, Master Pandemonium has done battle with Scarlet Witch and her sons, Wiccan and Speed, in addition to working with the Hellfire Club.
In the M.O.D.O.K. universe, Master Pandemoinum hosts his own talk show, Morning with Master Pandemonium, and spends much of his time complaining about his demon-baby hands. He is shown interviewing M.O.D.O.K.'s wife Jodie about her self-help book in Episode 3, "Beware What from Portal Comes!"
Ciegrimites
A race of green aliens with snail-like eyestalks and a hard outer shell, the Ciegrimites were created by Bob Layton for 1982's Hercules #4. The creatures are introduced to the M.O.D.O.K. universe in Episode 3 when M.O.D.O.K. attempts to unleash the Brood upon GRUMBL's leadership conference by opening a portal to their world, as part of his plan to make himself look good by saving the day. However, as he soon discovers, the Brood has been partied to death by the hedonistic Ciegrimites, forcing him to stop the fun-loving extraterrestrials before they slaughter GRUMBL's employees with their wild ways.
Armadillo
In Marvel's comic books, Antonio Rodriguez was an ordinary Texan who was transformed by the corrupt Dr. Karl Malus into Armadillo, a part-human, part-armadillo being with bulletproof armored hide and giant claws that allow him to dig into the Earth. Co-created by Mark Gruenwald, who always intended for the character to be something of a joke, Armadillo first appeared in 1985's Captain America #308 and has popped up in multiple major comic book storylines over the years, including Civil War and Secret Empire.
Armadillo is one of a handful of working-class super-criminals M.O.D.O.K. recruits from the Bar with No Name to assist him on a heist to steal Captain America's shield in Episode 4, "If Saturday Be... For the Boys!," in the hopes of gaining access to the Soho Lair (a ritzy club for elite villains). In Armadillo's case, however, he's more concerned about winning back his ex-wife... who divorced him eight years ago.
Poundcakes
Another member of M.O.D.O.K.'s heist gang in Episode 4, Marian Pouncy/Poundcakes is a wrestler/convict who possesses super-strength and is capable of generating shock waves and tremors thanks to her seismic boots. Also co-created by Mark Gruenwald, Poundcakes made her debut in 1979's Marvel Two-In-One #54 and has served as a member of the all-women wrestlers group known as the Grapplers. She has also been part of the Femizons, a group of women warriors who did battle with Captain America in their efforts to create a perfect world where women rule over men.
Angar the Screamer
David Alan Angar/Angar the Screamer is among the frequent customers of the Bar with No Name that join and ultimately end up befriending M.O.D.O.K. over the course of his attempt to steal Captain America's prized shield in Episode 4. Created by Gene Colan, Steve Gerber and John Tartaglione, Angar was introduced in 1973's Daredevil #100 and can cause others to hallucinate by screaming at them, courtesy of his scientifically-enhanced vocal cords. At least, the comic book version of Angar can; the one in M.O.D.O.K. mostly only briefly incapacitates and annoys people when he super-screams/sings at them.
Tenpin
Also known as Alvin Healey, Tenpin is yet another one of Mark Gruenwald's co-creations for Marvel Comics and first appeared in 1986's Captain America #317. Thanks to his natural talent for juggling, Alvin was recruited to join the Death-Throws, a gang of costumed super-criminals whose members used (what else?) throwing weapons, many of which they juggle to one another. Tenpin himself specializes in wielding bowling pins as weapons and is one of the five blue-collar super-villains who accompanies M.O.D.O.K. in his ill-fated mission to gain membership to the Soho Lair.
Melter
The oldest member of M.O.D.O.K.'s heist team, Bruno Horgan/Melter is capable of melting all manner of substances thanks to his advanced tech. Created by Stan Lee and Steve Ditko, Bruno Horgan was introduced in 1963's Tales of Suspense #47 and is the first person to adapt the Melter moniker in the Marvel Comics Universe. In an unexpectedly emotional moment, M.O.D.O.K. Episode 4 ends with Melter quietly, yet happily dying after watching the sunrise with M.O.D.O.K. and the rest of their crew after their heist fails to even get off the ground, subsequently forcing M.O.D.O.K. to confront his own mortality and question what he wants his legacy to be.
Arcade
A frequent enemy of the X-Men, the super-villain Arcade is know for using his comedic mannerisms as a cover for his sadistic nature. Created by John Byrne and Chris Claremont for 1978's Marvel Team-Up #65, he typically kills his victims by sending them to Murderworld, a series of deathtraps disguised as a colorful amusement park funhouse. He does the same thing to M.O.D.O.K. and his family in M.O.D.O.K. Episode 8, "O, Were Blood Thicker Than Robot Juice!," pitting them against multiple robotic copies of themselves and forcing them to figure out who's real before it's too late.
Hexus the Living Corporation
M.O.D.O.K. gets a crash-course in just how evil corporations can be when his criminal organization A.I.M. is acquired by tech company GRUMBL at the start of Season 1. However, as it turns out, GRUMBL's shadowy board of directors is really Hexus the Living Corporation, a parasitic extraterrestrial being that moves from planet to planet, consuming their resources and exploiting their inhabitants until there's nothing left. Crated by Grant Morrison, Hexus first appeared in 2000's Marvel Boy #3 and depends on its followers to stay alive (much like the everyday mega-businesses of Earth).
Marvel's M.O.D.O.K. stars Patton Oswalt as M.O.D.O.K., Aimee Garcia as Jodie, Ben Schwartz as Lou, Melissa Fumero as Melissa, Wendi McLendon-Covey as Monica Rappaccini, Beck Bennett as Austin Van Der Sleet, Jon Daly as Super Adaptoid and Sam Richardson as Gary. The series premieres May 21 on Hulu.