Reese Wilkerson

Reese is the older brother of the titular protagonist of "Malcolm In The Middle" and is also arguably a minor antagonist due to his extreme personality, which can vary from a slow-witted bully, mischievious trickster or (at times) a mild sociopath who does bad things seemingly for the sheer thrill of it. His favorite target is usually his brother Dewey, often hitting him or breaking his toys.

Impulsive, often idiotic but also capable of coming up with surprisingly devillish plans when he wants to Reese is rarely liked by the other characters of the show (even his own family) due to his destructive and bullying nature.

Reese is theorised to have such a strong mean-streak that while still in the womb he kicked Lois so hard she delivered him prematurely and his first act upon waking into the world was to swiftly kick the doctor delivering him.

Though incredibly violent, he is still terrified of Lois.