noun, noun or participle which takes 'suru'
changing one's public persona; changing one's image
Colloquial term often used about celebrities, fictional characters, or people in online communities when they deliberately alter how they present themselves to others.
あの俳優、最近キャラ変したよね。
That actor has changed his public image recently, hasn't he?
アニメの続編で主人公が急にキャラ変して驚いた。
I was surprised when the main character suddenly changed personality in the anime sequel.