Mina Loveberry is the Mewman hero, and the main antagonist in the final season of Star vs. the Forces of Evil.
During the episode, Mina shows a rather energetic personality, with a slight hint towards insanity. She, like Star, does not get much of Earth culture and sometimes does whenever she wants, like setting a hot dog cart on fire after learning about democracy.
What caused her personality to turn like this, and how she acted before the incident, is unknown.
Mina is a fair-skinned female mewman with purple hair with two odangos and green eyes. She wears a turquoise dress shirt with poofy sleeves and a matching pleated skirt, a grey helmet with a spike at the top, a purple bowtie, a purple belt across her waist, white opera gloves and magenta heels.
In recent years however, due in part to the deterioration of her mental state, both her appearance and clothes have fallen into disarray. She has mud and dirt stains across her clothes and face, and is missing one of her boots, eventually losing her other boot and going completely barefoot.
She debuts jumping out of a dumpster with some thrown-away donuts, and Star soon recognizes her as her hero, while Marco only thinks she's a crazy lady and she follows Mina around and does what she says, like going to the mud, using playground equipment to make weapons, and other stuff.
Later on, after learning about the concept of democracy, Mina attempts to convince Star to help her conquer and rule the earth. However, when she refuses, Mina transforms into a muscular version of herself to try and intimidate Star into ruling with her. This fails, and Mina is soon defeated when everybody votes against her ruling them all, including herself.
Defeated by democracy, Mina dives into a dumpster that takes her back to Mewni, but not before taking away a handmade mace Star made and once at the dimension, she looks at the mace's head and laments leaving Star behind.
She reappears in Season 3's "Moon the Undaunted" (part of "The Battle for Mewni") in flashbacks. She appears more stable at the time she's seen trying to get information on the assassination of Comet Butterfly.
She shows up again in "Monster Bash" having camped out in Ludo's old castle where star is hosting a party for monsters mina starts kidnapping monsters and upon seeing Miss Heinous reveals that her real name is Meteora Butterfly, the daughter of Eclipsa Butterfly. She tries to kill her in her super Solarian form but Star, Marco and Tom fight her. Meteora, now remembering her true identity, escapes with Gemini and Rasticore. Mina follows soon after.
Her last appearance in Season 3 comes in "Divide" where it's revealed she lost to a now powerful Meteora off-screen.
She comes back in Season 4's "Ghost of Butterfly Castle" now living in the abandoned castle where she sees Moon who came back to get her day planner. Mina wants to revive the Solarian Experiment and reveals herself to be the one who tried to yada yada Eclipsa with her crow Sebastian (after several failed attempts at getting crows to hold the berries without turning into stone). Moon wants no part of it. Mina flies off determined to kill Eclipsa while Moon decides to let the current queen handle it herself.
It's revealed in "Junkin' Janna" that Mina uses her Solarian magic to assemble a giant suit of armor to fight at her maximum capacity. In "Ready, Aim, Fire", she is tasked by the Magic High Commission to get rid of Eclipsa and the monsters and leads an army of a hundred Solarian Warriors in "The Right Way". The episodes "Here to Help" and "Pizza Party" show that she is working with Moon to remove Eclipsa from the throne, but she betrays Moon in order to wage war on all monsters.
In the final episode of Season 4 "Cleaved", as well as the show's series finale, Mina tracks Eclipsa and her co-conspirators to the realm of magic, but she is incapacitated by a millhorse for trying to prevent Eclipsa, Meteora, Moon and Star from destroying the magic. She even faces contempt for her actions from the ghost of Queen Soloria. After the magic is completely destroyed, Mina loses her Solarian Powers and flees into the woods of Mewni, declaring that her ideas will still live on.
- Mina Loveberry's design is almost identical to Usagi Tsukino from the famous anime and manga series Sailor Moon.
- Ironically, Mina is also the Americanized name of Minako Aino/Sailor Venus in the DiC/Cloverway dub of the Sailor Moon anime.
- Mina's pet crow Sebastian is a reference to Maleficent's pet raven Diablo from Sleeping Beauty.