This page is for the characters who were only mentioned in the show.
Alex Park’s father[]
Alex Park’s father is the father of Dr. Alex Park. Park described him as unloving, as well as a Grandmaster in Taekwondo which he trained Park in.
Andie Lever[]
Andie Lever is Carly Lever’s younger sister. She is autistic, as is an ex-boyfriend of Carly’s (Shaun Murphy) which led to Carly being more able to understand the condition. Carly even told Andie about Shaun, whom Andie was inspired by.
Aunt Becky[]
Maddie Glassman had an Aunt Becky, but it’s unknown if she was a sister or married to a sibling of Maddie’s mother Ilana or father Dr. Glassman. After Glassman locked Maddie out of the house in frustration of her drug issues and inability to get her to stop, he thought she would’ve gone to her friend Jessica’s or Becky’s as opposed to what she did do which was suffering an overdose from the drugs and dying.
Cassie Reznick[]
Cassie Reznick is Morgan and Ariel Reznick’s sister and one of Caroline and her husband’s daughters. She is a composer, having become an artist much like Caroline and Ariel. Like Ariel and then Morgan, Cassie became frustrated when Caroline developed cav-mals in her brain and wouldn’t listen to medical professionals who tried to advise that Caroline have a lobectomy which would’ve meant she could no longer be a painter. However, they didn’t involve Morgan in their conversations as they felt she shut them off due to Morgan’s claims of being an only child and their parents involved in other careers due to Morgan’s annoyance at being outshined by her family who are artistically gifted unlike her.
Dr. Pitcairn[]
Dr. Pitcairn was a doctor at San Jose St. Bonaventure Hospital. Dr. Audrey Lim and Nurse Deena Petringa hated him as he was always on Lim’s case, which led to them giving him the nickname "Pitstain". Once, he almost made Lim cry which led to Petringa stepping in and giving Lim time to compose herself.
Donnie Dilallo[]
Donnie Dilallo is Lea Dilallo‘s brother (though it’s unknown if he’s older or younger than her). They tried to work to save their Grandpa Rod’s garage, but failed while their relationship was wrecked following this.
Ethan Murphy’s friends[]
According to Shaun, his father Ethan had his friends over for poker nights. They treated Shaun just as bad as Ethan did, which led to Shaun being sent to his room when they came over.
George Reynold’s sister[]
George’s Reynold’s sister was a sister of his. He stated that they were best friends during their childhood.
Grandpa Rod[]
Lea’s Grandpa Rod was one of her and Donnie’s grandfathers, though it is unknown if he was Pam or Mike’s father. He was possibly the husband of Lea and Donnie’s Grandma Susie. He was a fan of the TV show Starsky and Hutch and owned a “striped tomato” car. He died in 2016 and Lea was given his car following this. She and Donnie also tried to save his garage, but failed.
Howard Shaw’s wife[]
Howard Shaw’s wife was married to Howard Shaw and the mother of their children. She died of ovarian cancer, which made him hate hospitals.
Ida Guelph’s daughter[]
According to Ida Guelph, she had a daughter who died three days before her birthday. Ida and her husband later split up following this.
Ida Guelph’s husband[]
According to Ida Guelph, she had a husband whom she split with after their daughter’s death. He died some time later.
Jessica Preston’s grandfather[]
Jessica Preston’s grandfather was the founder of St. Bonaventure Hospital and a grandfather of Jessica Preston, possibly her father’s father. Jessica being his granddaughter got her a position on the board at the hospital.
Kashal[]
Kashal was once a husband of Dr. Lim. However, they split which was supposedly after he had been in contact with his ex and Lim found this out. This made Lim have issues about opening up. It’s unknown if he was the one who got her pregnant which she aborted back when she was in med school.
Kenny’s girlfriend[]
Kenny’s girlfriend once spent time at the carnival with Kenny and his neighbor Shaun, who once lost a bet with Kenny and ended up paying for everything.
Lea’s ex-husband[]
Lea’s ex-husband was a childhood neighbor of Lea Dilallo and the two soon got married. However, they quickly realized that it was a mistake in some way and the separated. Lea got an exercise machine they had in the divorce, but she kept it in her attic for some time. She soon worked to assemble it sometime after moving in with Shaun (her boyfriend) so as to take a photo of it to sell online since she didn’t need it.
Morgan Reznick’s best friend[]
According to Morgan, her best friend had a child whom she didn’t vaccinate. She considered doing so, but was convinced into doing otherwise. The child later got whooping cough, died as a result and Morgan’s friend was left planning the funeral a week later.
Mr. Anderson[]
Mr. Anderson was Casey Anderson’s father and Mrs. Anderson’s husband. Either before or after Casey’s mother’s death following an overdose from prescription drugs, he felt that his father resented him though Casey’s father never explicitly expressed anything of the kind. After a connection broke off between Casey and his father after Casey got trapped, Mr. Anderson soon arrived but was informed by Dr. Park who had met Casey that Casey had unfortunately died.
Mr. Benitez[]
Mr. Benitez was Santiago and Armando Benitez’s father. He was stated by Santiago to have created his company himself while also apparently being a hardworking and honest man, which he expected his sons to also be. However, Armando would claim that their father never appreciated Santiago’s efforts. The brothers later fought over Santiago (who inherited the company) selling the business to Armando.
Mr. Carl[]
Mr. Carl was Shaun Murphy’s fourth grade gym teacher. He knew that Shaun was getting picked on in the locker rooms before gym, but none of his efforts to stop it ever worked. He even went so far as to allow Shaun to not come to gym but still give him a B, but this just got Shaun picked on outside of gym and he felt as if Mr. Carl had made him feel weak and helpless.
Mr. Ken Decker[]
Mr. Decker (A.K.A. Ken Decker) was a substitute teacher Shaun Murphy once had. Sybil Meeks (a foster mother of Shaun’s) stated that she once dated him in high school. Shaun had some trouble with him at the time.
Mr. Lee[]
Mr. Lee was Sunny’s husband and Grace’s father. Grace said that he wanted her to follow her dreams which was a stark contrast to what Sunny wanted.
Mr. Reznick[]
Mr. Reznick is Caroline’s husband and Morgan, Ariel and Cassie’s father. According to Claire, he and Caroline are happily married even though Morgan once claimed they aren’t.
Mrs. Anderson[]
Mrs. Anderson was Casey Anderson’s mother and Mr. Anderson’s wife. According to Casey, his mother was once in accident which led to her taking prescription drugs that she became addicted to. Casey once came across the bottles while hoping to get some money to see a movie, but the fact that he didn’t know what to say led to him not saying anything and she overdosed three weeks later.
Mrs. Denys[]
Mrs. Denys was Anton’s wife and Darya’s mother. Following her death, Darya commented that she and Anton never talked about it.
Naja Modi’s brother[]
Naja Modi’s brother works in a drug company. He took some ethanol which Naja used to make a perfume.
Neil’s prom date[]
Neil’s prom date was an ex-girlfriend of Neil Melendez. She was the prom queen at their high school prom while he was the king.
O’Brien[]
O’Brien is an employee at St. Bonaventure Hospital. After Dr. Andrews (the hospital’s former president) left to travel the world, O’Brien was next in line for Interim President of the hospital. However, he was greatly detested by a lot of the hospital’s employees (most notably, Dr. Lim, Nurse Villanueva and Dr. Glassman) and Lim and Glassman became the hospital’s co-interim presidents.
Paul (Hurt)[]
Paul was Vera’s ex-husband. According to Vera, she was very honest with him but he wasn’t so much and he broke-up with her. He’s also on the board for a charity event which she attended to try and get him back, but a part of her actually wanted to get over him.
Ricardo Magallanes' cousin[]
Ricardo Magallanes' cousin was a cousin of Ricardo. They were victim of a wedding bus crash and died in the accident, which Ricardo was left dealing with upon arriving at the hospital that took in the injured people.
Shaman[]
The village where Georgietta and Gabriel live has a Shaman who tried to rid Gabriel of the “demons” in him concerning his heart abnormalities.
Sonya Kung[]
Sonya Kung is the head of Denver Memorial Hospital. She at one point mentored Dr. Morgan Reznick.
The team lawyer[]
After Darya Denys became frustrated when her father Anton asked that her spine be fixed which would have put an end to her gymnastics career, she replied by calling the team lawyer to have herself emancipated. The lawyer would later demand that Darya be released from the hospital, though Dr. Lim refused to allow it.
Tom F. Kennedy[]
Tom F. Kennedy was Neil Melendez’s best friend since 2007.
Unnamed autistic person[]
Dr. Jackson Han once knew someone with autism and who possibly familarized Dr. Han with the condition. According to Han, the unnamed autistic person died through circumstances Han did not mention and made Han have a somewhat prejudiced belief about autistic people. He carried on believing this when he met Dr. Shaun Murphy.