Felix the toad

Felix is a toad who lives with his mother Mary alongside his older brother Thomas the Toad and his little sister Ruby the Toad. He is also the Husband of the green Sprixie Princess and the father of Lily the Sprixie

he is a crude toad who always canoodles with LUCY van PELT and brags on how he is the best and cleverest toad alive.

in one episode, it is revealed that Felix has Post Traumatic Stress Disorder which usually ends in him turning into his Evil side Xilef and harming any character while he gets the chance.

Because of his cruelty towards other characters, he is without a doubt, the most hated character in the series because of his second side and because of all the crazy shenanigans he does. He is also hated because of him hitting on other girls.