Mercy Hospital personnel
The following personnel were employed or patients at Mercy Hospital in 1986.

Named

Patients
 Pavel Chekov
 Gillian Taylor (allegedly)

Staff
 Gottlieb
 Weintraub
 Sandi Zober
 James T. Kirk (allegedly)
 Leonard McCoy (allegedly)

Unnamed

Interns in elevator 
These two hospital interns talked about the different views of Doctors Gottlieb and Weintraub regarding an unnamed patient's treatment while using the elevator. When Kirk, Gillian and McCoy joined them, McCoy compared their discussion, which concerned radical chemotherapy and image therapy, to the Spanish Inquisition. ()

Operating team 
Two doctors and two nurses prepared the operation for Chekov following his fall from the aircraft carrier . When Kirk, Gillian, and McCoy came in to treat and kidnap Chekov, the team was jailed in a small room behind the operation room. The young doctor previously asked McCoy if he had his doctorate in dentistry following McCoy's comments about medievalism. (). McCoy tells the doctor that the artery must be repaired to save Chekov rather than simply drilling into his skull. Kirk, using his Klingon phaser, locks the doctor and his staff in a small supply room so that McCoy can help Chekov undisturbed.

PA announcer  
This individual paged Doctor Sandi Zober. ()

Patient 1 

This elderly patient had been in for kidney dialysis treatment and was lying on a floor bed when Doctor Leonard McCoy saw her and asked her what her disease was. McCoy (sarcastically muttering about the "Dark Ages") gave her a pill that caused her to grow a new kidney, to her delight and the bafflement of the hospital staff. ()

Patients 2 and 3 
These patients were treated at the Mercy Hospital in 1986. ()

Patient 4  
This patient was the female patient Doctors Gottlieb and Weintraub discussed in front of the two interns. Weintraub believed she would "croak" without radical chemotherapy. ()

Personnel 
These doctors, nurses, and candy-stripers worked at Mercy Hospital in 1986 when Chekov was treated there following his injuries and when Kirk, McCoy, and Gillian Taylor rescued him. ()

Team in corridor 
A team of doctors and nurses accompanied the elderly kidney dialysis patient in a wheelchair after McCoy's pill let her grow a new kidney. ()

Visitors 
These visitors were at Mercy Hospital in 1986 when Kirk, McCoy, and Gillian Taylor rescued Chekov. ()

de:Liste von Mitarbeitern des Mercy Hospitals
Earth personnel
Unnamed Humans