Following up on the popularity of Data on debuted with its own artificial crewmember, the Emergency Medical Hologram (Robert Picardo), usually just called “the Doctor.”

Source: https://www.digitaltrends.com/movies/top-10-best-star-trek-voyager-episodes-ranked/

For HMCS Fredericton crewmember Patrick Brouwer and his wife Nichole, the mission will mark the longest time they’ve spent apart.

Source: https://globalnews.ca/news/9428540/hmcs-fredericton-halifax-operation-reassurance/

In recognition of individual achievements, the commanding officer frocked one crewmember to the next higher pay grade, and the team bid farewell to two departing members, acknowledging their dedication and contributions to the regional mission.

Source: https://www.dvidshub.net/news/447802/us-coast-guard-completes-first-patrol-following-typhoon-mawar-safeguard-those-sea-enhance-maritime-security-mariana-islands

The Season 3 finale did welcome a new Vulcan crewmember seen in a previous episode – while some unidentified ship recovered Sam Rutherford's original cybernetic implant and discovered the evil A.I. Badgey is still lurking inside of it.

Source: https://comicbook.com/startrek/news/star-trek-lower-decks-season-4-trailer-2-watch-paramount-plus/

This mystery crewmember appears to be the secret identity of Nidothing, aka "Gurumin" in Japanese.

Source: https://screenrant.com/pokemon-horizons-episode-8-release-date-time/