(List is alphabetical by last names or first names if last names are unknown.)
Cory Alvarez[]
Description: A friend of Alex Chen who played in a band with him. Shortly before Alex's disappearance, Alex made a romantic advance towards him, which he rejected, causing Alex to panic and run away.
Mentioned in: A Neon Darkness.
Hannah Turner[]
Description: Hannah was the daughter of Lee Sandoval and Vanessa Turner. She fell ill and died as an infant. Chloe learned about her by reading her mother's mind shortly after her ability manifested.
Mentioned in: Patient #13-A-3 (Chloe), Session 1, Patient #1-A-5 (Vanessa).
Ira[]
Description: Ira is a teenage patient at the AM. He has the ability of super-speed and is notably closest to Owen Green out of all of the AM employees.
Portrayed in: "Homecoming".
Portrayed by: Tyler Lofton.
Jessica Hernandez[]
Description: A high school classmate of Caleb and Adam and close friend of Caitlin Park, who Caitlin still talks to as of The College Tapes, though she notes that the two have grown apart.
Mentioned in: Movie Night, The Infinite Noise, Ex Quo.
Kenny[]
Description: Kenny is a friend of Alex Chen who deals drugs and who frequents a club called Void. Kenny is a mind reader who, like Alex, uses drugs as a way to dull his ability.
Mentioned in: A Neon Darkness.
Dr. Pierce[]
Description: An AM doctor who trained with Dr. Andrea Sharpe. She was brought in by Wadsworth at the end of The AM Archives to take care of Alex Chen after Sharpe's death.
Mentioned in: People Like Us.
Agent Plum[]
Description: An AM employee who works in the archives of the Boston division and who trained with Green and Wadsworth. She gave Green the files that he, Joan, Sam, and Mark used to take down Wadsworth, not knowing that was what he intended to use them for.
Mentioned in: The AM.
Ryan[]
Description: A classmate of Caleb and Adam's who plays on the football team with Caleb and is notably on good terms with the two.
Mentioned in: The Infinite Noise.
Tobias Sitzer[]
Description: Tobias is a first generation Jewish man who attended Yale in the 1940s. On May 11th, 1945, Tobias (who at the time was in his second year at Yale) left an entry in The Book in which he describes finishing his finals and shows joy over having received a handshake from the school's first Jewish professor (Mr. Moritz). He talks of the discrimination present at Yale and expresses happiness over progress being made. Caleb and Oliver later read (and hear) this entry while at the lighthouse.
Portrayed in: Spiritus Libri.
Voiced by: Omri Horowitz