Vital statistics
Full Name Katie Persky
Aliases None
Age 10
Gender Female
Hair Color Brown
Race Caucasian
Eye Color Black
Friends Allie, Corey Riffin, Laney Penn, Kin Kujira, Kon Kujira, Trina Riffin (mixed)
Enemies Trina Riffin (mixed)
Love Interest Nick Mallory (Wicked Cool Transition Builder only), Corey Riffin
Relatives None
Faction Groupie
Location Peaceville
First Appearance Grojband Pilot
Latest Appearance Curse of the Metrognome (Cameo)
Voice Actor Madelyn May

Katie "Kate" Persky is one of Grojband's adorable groupies. She is the biggest fan of Grojband along with her best friend, Allie. She is a pretty brown haired girl that has a crazy obsession for Grojband and usually squeals over Grojband and is in love with every single member of the band mostly Corey.


Kate is a 10-year-old girl with short brunette with her hair in a curly bun and glasses. Her skin has many freckles and her shirt is white with black sleeves and fire on it which matches the shirt that Kon wears. She also wear teal pants and red sneakers.


Kate is a Grojband obsessed fan girl who will risk her life to help out with the band.

Episode appearances

Major Roles

Minor Roles


  • Although Kate and Allie are the biggest fans of Grojband, they have been shown to be huge fans of others celebrities in the show.
  • In the episode Group Hug, Corey revealed to her and Allie that he doesn't write his own lyrics and that he steals them from Trina's diary. This makes her, Allie, and The Orb Experience are the only ones who know this secret about his band.


See also

Grojband Characters
Grojband Corey RiffinKin KujiraKon KujiraLaney Penn
Main Antagonists Trina RiffinMina BeffThe Newmans • (Carrie BeffLenny NeppKim KagamiKonnie Kagami)
Supporting Characters Nick MalloryMayor MellowKate PerskyAllie DayBuzz NewsworthyChance Happening
Minor Antagonists The Orb Experience • (G'ORBT'ORBZ'ORBN'ORB) • Two JuniorThe Pirate Crew • (Captain Tighty WhiteyShaven BeardBarnacle Tim)
Recurring Characters BarneyParty DanimalChipperBearLaney's HeartDonkeyHipstersDr. Purr
Season 1 Characters Cherry GrapestainZombiesDog NickCaptain CarneyCarney KidThe Bubble Bunch Band • (Bobby BlueRandy RedGary GreenYosef Yellow) • Random Stunt DuckMonster ChuckSchool Bus RhondaIce Cream TomNerdsThe Brotherly BoysCleatBessyBake BarneraEvil HelmetEl ChewpoocacaPlantyBlade StabbingtonBitefaceZoo Animals • (BearJoey) • Queen Bee Cuties3D DaveMrs. KujiraDream NicksMirage Band • (Mirage CoreyMirage KinMirage KonMirage Laney) • Quincess TrinaDog MinaKatrinaMick MalloryThe Four SquallsKing LyriclesSmasheousMs. ObedienceYippieSparklesOtisMr. PeapennyNerdiciusBlue Star of Rocklympus
Season 2 Characters BlancheBerthaBeatriceTorboCylus RiffinBrick MalloryMimeyMime ArmyLyriclesShrediciousDJ FusionTuba TimHipstersTrina's HeartDark Rimmed GlasseousCandy JamsGuy BromanBylaw 62.8Hologrojband • (Holo-CoreyHolo-KinHolo-KonHolo-Laney) • WheelieSnarfflesQuacker JackMr. KujiraPrinces of 50s Soul MusicJammyLoud FrankEarl RuralReplacement GrojbandGaryMetrognomeSavage FredAncient SambansPanda Bear Internet MemeL'ORB
Other Characters Chip ChunkleyChunk ChipleyBig ToeFire Drum GodElectric Guitar GodStoner Hippie God