Squirrel Twins

Hotty & Coldy are a pair of twin squirrel brothers and main characters in Subject 9. Hotty has pyrokinetic powers, while Coldy uses cryokinesis. They were taken from their orphanage and imprisoned by EXA.

Biography
Hotty and Coldy were orphans living in an orphanage. During their time there, they were bullied by the other kids, until one day Hotty used his powers and burned down a bully's bed. They got in trouble, and had to do cleaning chores as a result. During this, Coldy freezes the floor and causes their caretaker to slip. This gets them sent to EXA, where they are locked up for studies on their powers.

The twins escape during Rick's prison break, and accompany the other escapees to Rick's hideout. That night, Rick takes them on a burglary run and teaches them a few tricks. Although Hotty and Coldy are reluctant to steal, Rick tells them that it's just borrowing, and persuades them with food. From then on, the twins look up to Rick as a role model, to the displeasure of Tina.

Description
Hotty and Coldy share a strong bond with each other. They are rarely apart on their own doing. They share similar thoughts, and are even able to finish each others' sentences. They will always stand up for one another and the other subjects.