Alternate timeline
(covers information from an alternate timeline)

Doctor Joshua Kim was a Starfleet crewmember aboard the USS Enterprise-D in an alternate timeline.

He was paged to report to Cetacean Ops over the ship's intercom shortly after the ship encountered the USS Enterprise-C near a temporal rift in 2366. (TNG: "Yesterday's Enterprise")

This character was only mentioned in dialogue.
It is not clear if Dr. Kim was a crewmember in the "regular" version of the timeline.
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