Mr. Wise Guy

Charismatic leader of the East Side gang, Muggs uses wit and street-smarts to navigate trouble. He often acts as the plan-maker and morale booster, balancing bravado with loyalty to his friends. His nickname 'Mr. Wise Guy' signals both charm and streetwise defiance.

Danny is Muggs' close ally, brave and impulsive, with a strong sense of loyalty to his friends. He often acts as a bridge between older guards and younger boys, showing courage under pressure.

Glimpy is one of the quick-witted members of the gang, providing humor as a coping mechanism in the tough reform school environment. He is resourceful and supportive of the group.

Peewee is the smallest but sharpest-eyed member, observant and street-smart. He helps the group notice details that others overlook and contributes to their escape plan.

Skinny is a steady, level-headed member who balances the gang's more reckless impulses. He remains hopeful and cooperative under pressure.

Knobby is the driver of the stolen truck and a link to Manning; his actions set off a chain of events that pull the boys closer to the truth and Bill's case.

An escaped convict who uses Bill to stage a crime and escape, Manning is a persistent antagonist whose crimes escalate the drama and risk for the others.

Bill, Danny's older brother and former reform-school guard, is wrongfully implicated in Manning's crime. His struggle with a tainted past and his eventual reprieve drive the moral core of the story.

Ann, the warden's secretary, becomes a catalyst in the plan to clear Bill's name and shows a compassionate side that helps connect the characters. She aids the boys by providing information and support.

Dorothy Melton is the woman from the newsreel whom the boys seek out for information. Her involvement with Manning's plot adds another layer to the pursuit of justice.

Jim Barnes is the reform school's new warden who enforces gentler rules and tries to curb the guard's brutality. He plays a crucial role in shaping the institution's policy and in the eventual resolution.

Charlie Manning is the cunning nephew who helps Manning conceal his crimes and ties the gang to the larger criminal plot. His actions complicate the pursuit of justice.

Chalky is one of the toughs at the reform school who informs on the kids to get them in trouble, showing the pressure the boys face from informants and authority figures.

Dratler is a hard-edged criminal figure who heightens the danger outside the reform school walls and presses the boys to act quickly to clear their names.

Scruno is a member of the East Side gang, contributing to the group’s plans and resilience during their run-ins with the law and the reform-school regime.