Periodic Mayhem

 is an American animated action-adventure-science fiction television series, being created by TBD. It is produced by Titmouse, Inc., Sony Pictures Animation and Hulu and it airs on Hulu since March TBDth, 2023.

Synopsis
After a lab experiment gone wrong, a group of students accidentally bring the periodic table’s elements to life as some of them cause chaos while others are somewhat more heroic as the students have to work with the elements to stop the creatures.

Main

 * Henry Owens (voiced by Jason Marsden) - a courageous yet ditzy teenager who is regarded as a "man of action" by his friends, although he also ends up leaping without looking when dealing with rogue elements.
 * Hunter Bradford (voiced by Yuri Lowenthal) - an introverted teenager who isn't fond of hanging with people and is forced to join Henry's lab experiment group and is soon forced to help deal with the Periodic Beasts.
 * Emily Herrings (voiced by Natalie Lander) - a sweet and caring teenager who loves making friends and cute animals as she befriends Henry as she enjoys adventure as well, enjoying hunting after the Periodic Beasts.
 * Kristina Wallace (voiced by Jessica DiCicco) - a seemingly snobby popular student who loves social media and texting as it is revealed she just needs actual friends as she starts to grow a shy crush on Hunter.
 * Hydrogen (voiced by Stephanie Lemelin) - a gaseous elemental being who can change personality on a whim, either being goofy and energetic, extremely aggressive or gothic and cynical as she can also fight differently on which personality she has.
 * Iron (voiced by Cristina Milizia) - an overprotective yet naïve metal elemental being who is devoted to defending her friends, although she doesn't know how human society works.
 * Gold (voiced by Jack DeSena) - a flamboyant yet cocky metal elemental being who believes himself to be the most valuable of the elements, although he can come through for his friends.
 * Oxygen (voiced by Josh Keaton) - a carefree and slightly slacker gaseous elemental being who likes to chill and hang, although he likes to help his friends as well.

Supporting

 * Natalie Owens (voiced by TBD) - Henry's snobby older sister who likes to text on her phone and often gets thrust into periodic situations as well.
 * Thomas and Bethany Owens (voiced by TBD and TBD, respectively) - Henry and Natalie's hard-working but caring parents who want to make sure their children stay safe, although they do tend to be overprotective.
 * Professor Hal Stan (voiced by TBD) - a stern, yet comedic and scaredy teacher who is the Science teacher, and was the one who assigned the lab experiment that caused the Periodic Elements to come to life.
 * Bobby Scotty (voiced by TBD) - a goofy and energetic teenager who is Henry's best friend as he soon learns of the existence of the elemental beings.

Antagonists

 * Uranium (voiced by TBD) - an insane and brutal nuclear elemental being who wants to destroy anyone and everyone, becoming the Elements' biggest threat.
 * Helium (voiced by TBD) - a playful yet sadistic clown-themed gaseous elemental being who wants to brainwash everyone into being her hypnotized circus, liking to crack jokes as well.

Episodes
See List of Periodic Mayhem episodes.