Sammy’s nurturing and supportive grandmother, with whom she secretly resides at the Senior Highrise, constantly worries about maintaining their living situation.

Initially known to Sammy as Oscar, a friendly ice cream vendor, his true identity as Larry Daniels connects to the robbery subplot.

Sammy’s loyal and somewhat nervous best friend, who supports her in personal and investigative endeavors.

The grumpy police officer assigned to the robbery cases, who often doubts Sammy’s abilities.

Sammy’s junior high school bully with fiery hair and a penchant for manipulative and attention-seeking behavior.