Jenna's mother, characterized by her strong desire for control and deep love for Jenna, often struggles between her protective instincts and Jenna's need for autonomy.

Jenna's father, a wealthy scientist and the creator of Bio Gel, who balances his roles as a caring parent and a professional invested in Jenna's recovery.

Jenna's maternal grandmother, a former doctor with a complex relationship with Jenna, guided by her spiritual beliefs and a commitment to honesty.

One of Jenna's classmates and eventual boyfriend, who shares a kindred connection with Jenna through their respective struggles with identity and personal pasts.

Jenna's classmate and a quadruple amputee turned medical activist, committed to ethical practices and representing principled convictions in the face of personal challenges.

Jenna's neighbor and classmate, whose initial intrigue gives way to unsettling behavior, serving as a counterpoint to Jenna's exploration of humanity.

An environmental artist and Jenna’s neighbor who becomes her first friend, teaching her about nature and providing a safe space to navigate her evolving identity.