Buttercup Utonium

Buttercup Utonium, better known mononymously as just Buttercup, is a child superhero and one of the three titular characters in the Powerpuff Girls animated franchise. Her voice was originated by E.G. Daily.

She is a member of the Powerpuff Girls, which also includes her other fraternal triplet sisters, Blossom and Bubbles. Together, they live with their father, Professor Utonium, in the city of Townsville, which they have become the official protectors of.

Utonium created the girls—albeit accidentally—while trying to create the perfect little girl with a mixture of "sugar, spice, and everything nice." He then accidentally added the extra ingredient of Chemical X, which created three little girls around the age of three to five year olds; complete with special powers such as being able to fly, super strength, and shooting lasers from their eyes.

TV series

 * What a Cartoon!
 * 1.1 "Meat Fuzzy Lumpkins"
 * 1.22 "Crime 101"
 * The Powerpuff Girls (1998)
 * Courage the Cowardly Dog
 * 3.4B "The Ride of the Valkyries" (poster)
 * Powerpuff Girls Z
 * Steven Universe
 * 2.3 "Say Uncle" (mentioned)
 * The Powerpuff Girls (2016)
 * Teen Titans Go!
 * 3.40 "TTG v PPG"
 * Powerpuff unaired pilot

Movies

 * The Powerpuff Girls Movie

Specials

 * Twas the Fight Before Christmas
 * The Powerpuff Girls Rule!!!
 * Dance Pantsed
 * Scooby-Doo, Where Are You Now!

Shorts

 * "Team Building"
 * Come and Learn with Pibby! (no lines)

Comics

 * The Powerpuff Girls (DC Comics)
 * Cartoon Network Magazine
 * #1A "Pickle Party"
 * The Powerpuff Girls (IDW Comics)
 * The Powerpuff Girls: Super Smash-Up!

Buttercup Sells Out
In The Grim Adventures of Billy & Mandy episode "The Grim Adventures of KND," when the Kids Next Door arrives, Billy exclaims, "Hey! You're not the Powerpuff Girls!" Later in the episode, Buttercup and her sisters are some of the characters who exploded out of the Delightful Reaper.

In the Steven Universe and Uncle Grandpa crossover episode "Say Uncle," Buttercup is one of the names on Uncle Grandpa's list.

In the OK KO Let's be Heroes special "Crossover Nexus", she's one of the Cartoon Network characters Ben 10 transforms into.

Development
Buttercup was created by Craig McCracken.

In popular culture

 * In Craig McCracken's second series, Foster's Home for Imaginary Friends, the teenage caretaker Frankie Foster wore a t-shirt with a silhouette of Buttercup and her sisters in their trademark colors.

Robot Chicken

 * "Celebrity Rocket:" During a three-second channel flip, Professor Utonium, who's spiraled on the floor of his lab, comments to the Powerpuff Girls, "All thanks to stem cell research," with the girls (voiced by Seth Green) either cheekily or sinisterly replying, "Uh huh."
 * "I Love Her:" In the segment "Perfect Little Girls Who Flip The F&%$ Out," while creating the Powerpuff Girls, Professor Utonium adds cocaine to the recipe, causing the girls to go crazy and ravage the town.
 * "May Cause a Squeakquel:" Mojo Jojo is thrown into jail when the Powerpuff Girls realize that the town's judicial system is unfair and doesn't rehabilitate its criminals and so they break into the mayor's office and beat him up.

MAD

 * "WWe Bought a ZOO/2 Broke Powerpuff Girls": During "2 Broke Powerpuff Girls," Bubbles and Buttercup are left broke and jobless in their apartment after being fired from their job as waitresses. They turn to Blossom for help and she employs them to work for her company which owns a restaurant, leaving them at square one again.
 * "Taking Nemo/Once Upon a Toon": During "Once Upon a Toon," Samurai Jack trims a bush in the shape of the Powerpuff Girls.