Yorktown personnel
The following is a list of Yorktown personnel.

Named 
 Barlowe
 
 Bezos
 Boltaan
 Co-Co
 , Commander
 Natalia
 , Commodore
 Pesca
 Shazeer

Unnamed

Akima's species members  
These members of Akima's species were on Starbase Yorktown in 2263. One of these aliens, wearing civilian clothing, was walking with a member of Co-Co's species, on an exterior thoroughfare in the starbase, when the  made its way into the facility.

Another alien of this type was walking alone in a busy terminal during the Enterprises arrival. ()

Bony-looking pair  
This pair of aliens with bony-looking faces had extremely long fingers and were bald. They were walking inside a terminal at Yorktown while the  arrived there. They later passed through the same terminal near , behind his back, when he was watching 's reunion with  and their daughter. ()

Co-Co's species members  
These female members of Co-Co's species were on Starbase Yorktown in 2263. One of these aliens, wearing an operations division , was walking with a fellow alien, on an exterior thoroughfare in the starbase, when the  made its way into the facility, as was another alien of this type, who was wearing civilian clothing, and walking with an alien friend.

Wearing a different outfit, one of the aliens, Co-Co, later attended 's thirtieth birthday party, indoors at the starbase. ()

Control tower technicians 
()

Doctor  

This sciences division doctor was one of the physicians at Yorktown who treated Kalara upon her arrival at the starbase. He left the room when  joined the team. ()

Green-skinned boy 

This boy was watching the  enter Yorktown in 2263. ()

Purple-skinned child

Red shirt 
()

Schlerm visitors  
These two members of the Schlerm were at Yorktown when the  arrived there.

One of these individuals crossed an exterior thoroughfare in the starbase, together with a companion, whereas another was walking inside a terminal shortly after the Enterprise docked.

The latter passed near  straight after he was left standing alone by , she having just broken up with Spock. ()

Scotty and Keenser's friend 

This woman enjoyed drinks with  and Keenser during 's birthday party in 2263. ()

Sulu and Ben's daughter 

This young girl was the daughter of  and his husband . Sulu kept a photograph of her on the helm console aboard the Enterprise.

In 2263, she was living on Yorktown with Ben, and met Sulu at the spacedock when the Enterprise arrived for resupply. She survived Krall's attack on Yorktown. ()

Tall, blue alien trio 
This threesome of tall, blue aliens were walking through a terminal on Yorktown, close to each other, during the 's arrival at the starbase. They wore long, flowing robes, and the top of each alien's head was extremely pointed. ()

Vulcans

Wilbur's species members  

A pair of Wilbur's species workmen employed at Yorktown when the  made its way into the starbase in 2263. They wore goggles, a transparent hard hat on their heads, and a dark utility suit. ()

 
Unnamed individuals
Unnamed Humans
Unnamed² species
Unnamed Starfleet personnel (alternate reality)