Who is constantly harassed Kevin and max in the Freak the Mighty?

In "Freak the Mighty" by Rodman Philbrick, Kevin (Freak) and Max are constantly harassed by a group of bullies led by Tony D., also known as "Blade." These bullies frequently intimidate and threaten them, particularly targeting Max due to his size and perceived weakness. Their harassment serves as a backdrop to the friendship and adventures of Kevin and Max, highlighting the challenges they face in their lives.