Sprout is a straightforward, overprotective, and pragmatic Toon, as shown in his Passive Ability, being coined as "Overprotective". He often brings up 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, shown in the interaction with . He assures if she's okay, but inadvertently points out one of her insecurities. This can also be shown in other conversations. Sprout has a deep and clingy attachment to Cosmo, likely stemming from his existential crisis.
Sprout's bluntness and no-nonsense attitude may make him come off as stern at times, despite his soft appearance. But at his core, He is very protective and caring, if a bit overbearing towards the other Toons. In multiple instances, he always looks out for their well-being, such as in his dialogue with Looey , firmly reassuring him that he is "never a waste of anything." This care is particularly potent with his best friend Cosmo, with Sprout going so far as becoming mad when Shrimpo states that he hates Cosmo's cooking. According to his interactions with Squirm , he seems to have kindness towards the insecure toons, telling him that he would bake an apple pie for him. Sometimes he even appears to panic at the thought of any Toons being in a perceived peril, as shown when Poppy yells out his name, causing him to immediately ask if she's okay. This however doesn't prevent him from teasing his fellow Toons.
