Yrica Quell was an Imperial pilot who defected to the New Republic after Operation Cinder. Quell debuted in the comic TIE Fighter 1 (this was more of a cameo appearance). She one of the main characters in the books Alphabet Squadron and Shadow Fall – the first two books in a trilogy from Alexander Freed.
Quell is one of the five members of Alphabet Squadron (the X-Wing is her ship of choice). After gaining a bit of trust from New Republic officials she’s tasked with tracking down Shadow Wing – an elite Imperial Fighter Wing. She knows this wing well as she used to fly with them. Her story will continue in the third book by Freed which doesn’t have a released name yet.