A talented young artist and best friend of George, who illustrates the stories they co-create for their comic series, sharing a fondness for jokes and pranks.

The strict principal of Jerome Horwitz Elementary School, known for his harsh discipline and opposition to fun and laughter among the students.

A superhero character invented by George and Harold, who becomes central to their adventures and is portrayed as a symbol of humor and mischief.

An eccentric villain characterized by his ridiculous appearance, embodying a playful nod to the exaggerated arch-villains found in comic books.