Annie Vanschooneveld is the Tower's Foreign Affairs Attaché. 

Originally of Dutch extraction, her family changed its surname from van Schooneveld to the more western Vanschooneveld after the war ended in the Forties. It seemed the modern thing to do, although now, at times, Annie regrets her family not retaining their name's root spelling.

Annie travels and is only occasionally in Bay City for events on the Tower mall or other social occasions. As the foreign affairs attaché, Annie coordinates the interests of other countries' militaries with those of Corona Corporation. America first! That's Corona's corporative stance, although Annie's job is to present the research done in the basement of Corona Tower as a cooperative endeavor.

Annie is slender, with dark eyes and big teeth accentuated by bright red lipstick. She keeps her hair pulled back, with long bangs covering her eyebrows.

Annie's brother cut her out of his life years before. She hopes one day that her position on the international scene will convince him that she deserves a second chance.

Annie likes Devon Maye, but her job comes first. They date when she is in Bay City, which is not often enough for Devon.

We first meet Annie in Book 3 of The Human-Hybrid Project, The Mirror Cracks.

Avery Isken holds the title of Specialist in Computational Cognitive Neuroscience in the labs in the research center on Level 2 in the Corona Tower basement complex.

Avery rotates to Level 5 twice a month to help with the research animals housed in the cages. Feeding. Cleaning. Culling, if necessary.

Avery finds the job of working on Level 5 a welcome respite from his time in the neuroscience lab, and he enjoys showing off what he does, often inviting visitors to follow along if they happen to arrive at feeding time. 

Avery received his degree from the University of Texas at Austin, where he was a brother at Phi Gamma Delta. Avery's friendship with Jason Teague (introduced in Sunchaser's Gambit) through Phi Gamma Delta provided the link for Jason to also join the Corona Tower team.

Avery and Garik first meet in Book 3 of The Human-Hybrid Project, The Mirror Cracks, when Garik visits the lowest level of the basement complex to find out what has happened to Justin Kurtew. Avery recognizes Garik, greets him warmly, and is vaguely disappointed Garik has no interest in watching the feeding of the caged research animals.

Angelica Mattheussens is on the medical team in the research hospital located in the basement of Corona Tower, serving as an administrative assistant.

Angelica has a scar on her forehead that her black bangs don't quite hide. Exceptionally punctual, Angelica expects the same of those around her.

Angelica's brother died in a car accident, and she suspects (without proof) that it was the occupational therapist Van Hermoso. She has seen his car, and the red paint on his bumper is too telling to be coincidence.

Angelica sleeps with a CPAP machine. Her sleeping disorder is stress related, and it gets worse when she spends time around Hermoso.

Angelica's problems with diabetes have so far hampered her desire to run the Bay City Marathon, but she can still dream, can't she? She volunteers at registration for the event every year.

We first meet Angelica Mattheussens in Book 3 of The Human-Hybrid Project, The Mirror Cracks.

Nataly Jago cares for the human-hybrid rejects on Basement Level 5. 

Nataly has the dark, good looks of an Indian beauty, but her retiring nature suits her independent work in the research center's lowest basement level just fine. She is kind, patient, and understanding with the research subjects that make their way to Basement Level 5. She knows they are on the way out, and she strives to make their final transition as painless as possible.

We learn of Nataly Jago in Book 3 of The Human-Hybrid Project, The Mirror Cracks, although we never actually meet her.