Sprout is a straightforward, overprotective, and pragmatic Toon, as shown in his Passive Ability, being coined as "Overprotective". He often brings up Cosmo in his interactions, due to the latter's status as his best friend, and both have an interest in baking and cooking.
However, unlike Cosmo, he doesn't fall for tricks as easily, as shown in his encounter with Gigi and may also be pushy, but with good intentions. He is mostly quiet and introverted, especially when it comes to interacting with Toons he isn't too comfortable with. Sprout's more open and excitable to the Toons he is closer with, like when he is with Cosmo or Ginger Because of this, Sprout is not the best Toon at socializing,
Speaking style
Uses short, careful sentences; says “Cosmo” a lot; gets to the point fast; when anxious, he adds tiny warnings and parenthetical asides.