Often called Director by his employees, Weston Rodheimer is a tall man, wider in the shoulders than it seems possible. His eyes are white, but if you look closely, you'll notice that he wears colored contacts.

Rodheimer is not the most brilliant or even the head researcher at Corona Tower, but his major role in the research, plus his willingness to ingest someone’s career into his own and spit them out if necessary has lifted him to the top of a very elite pack of forward-thinking planners and new-age visionaries that see the world in their own terms.

Rodheimer is modified with a silverback gorilla and electricity. He can be strong and lightning fast when he is motivated. He hails from Grand Rapids, Michigan, and was married just out of college to Meg Winter Rodheimer. She died in a skiing accident, taking their unborn son to the grave with her.

We only know Meg Rodheimer through Rodheimer's memories, vignettes, and occasional remarks, but she is his motivation for his research for superhuman abilities. His anger at his wife's death is the reason he insisted the first experiments must be done on him. He’s lost his emotional empathy and only sees things in black and white. If you cross him, he casts you aside. He forgives as easily, if you admit your mistake and pay your dues. 

We first meet Weston Rodheimer in Book 1 of The Human-Hybrid Project, Shattered by Glass.

Jantzen Hefferly's true nature is disguised in much of Book 1.

Jantzen was the second subject to be modified through the human-hybrid project. He appears perfectly normal, with a narrow face, black hair, and a tight beard. An observant person might notice that his eyes glitter with a hint of purple.

Jantzen has been hybridized with a squid and can dematerialize into purple smoke. His eye color turned purple in his transformation, and the purple becomes stronger just before he dematerializes.

Jantzen was Rodheimer's childhood friend and is the true genius behind the human-hybrid project. As teens, he developed a crush on his friend. Unable to tell him, he became his most ardent supporter in the research field after Weston Rodheimer's wife, Meg, died.

After being at Rodheimer's side for the six months when Rodheimer hovered at life and death during his transformation, Jantzen begged to be the Project’s second trial subject. When the Project shifted from benefitting mankind to benefitting the military, Jantzen's love for his teenage crush slipped into hate, and his goal became to bring Rodheimer and his human-hybrid project down.

When Garik Shayk is captured and impressed into the human-hybrid project, Hefferly bonds with him as an ally and becomes his mentor in all things hybrid.

We first meet Jantzen in Book 1 of The Human-Hybrid Project, Shattered by Glass.

Halo Sunchaser was the third successfully hybridized human to complete the transformation to a new and improved race of human being. She likes to think of herself as homo superior, a class above ordinary homo sapiens. 

Sunchaser is known for her electrified sword, although few people have seen her wield it. The specifications for the lightning-spitting weapon can be found on the Corona Tower website, although no one has been able to duplicate it. Clearly, Marisa Bruni believes, the Tower has left out a vital layer of the schematics in order to defeat duplication of the fantastic device.

From South Africa, Sunchaser has ebony skin, and her features reflect that she has been modified with a hawk. She is a bonafide researcher in the human-hybrid field as a molecular biologist. She also trains in martial arts and desires to become an instructor in her free time. At one time, Sunchaser was a research assistant for Jantzen Hefferly, and she struggles with an undisclosed passion for her former boss which she can never admit.

Sunchaser's parents were killed in the South Africa race riots, and she wants to bring her grandmother to North America for treatment for a blood disorder. Her older brother Bongani is a South African senator, and they haven’t spoken since he accused her of being a traitor to the Cause when she left the country for North America. He holds the power to recall her to South Africa if he discovers she is part of the research program, the reason her electrified sword remains closeted and her transformation is kept secret.

Sunchaser travels to martial arts competitions with a tribal mask carved by her father. In it, she carries a temporary antidote that keeps her non-human side under control while out and about.

We first meet Halo Sunchaser in Book 1 of The Human-Hybrid Project, Shattered by Glass.