Sylvia Tilly

Sure, sure, Tilly captured our hearts as a Cadet before she got promoted for like, you know, helping end a war that nearly destroyed the Federation. Plus, she’s always got her eye on the next rank up, eager to become a Captain much more than she ever was an Ensign.
But Tilly represents that eager, excitable wanderlust that defines the very best of Starfleet’s junior officers: she can’t hold in her passion for the work she does, even if sometimes that passion and can-do attitude mean she like, gets bonded with weird fungal aliens from a layer of subspace from time to time. God bless you, Tilly. Hopefully, now you’re far-flung into the future someone will see that you’re well due for that promotion.
https://gizmodo.com/my-favorite-character-on-star-trek-discovery-is-the-on-1822646454