Characters in order:

Yarn - contestant

Ivy - contestant

WaterColor (WC) - contestant

Sketchy - Show Host

Sporky - contestant

Tabby - contestant

Squiggly - contestant

BeeBulb - contestant

Kas (human) - CoHost

Doodle - contestant

INKwell - contestant

Button - contestant

Powerboxy - contestant

Bottle (Jar) - contestant

Minty - contestant

ESC - contestant

Gemstone - contestant

Revi - contestant