Sotna Reat first appeared in the first issue of the 2016 Marvel comic mini-series, Star Wars: Han Solo and was first identified as Sotna in Han Solo 2. The character is based on the appearance of the Marvel Comics assistant editor Heather Antos
Mark Brooks, the artist of the series, revealed in the interview Solo Artist in Star Wars Insider 168 she was also named after Antos, and that her full name was Sotna Reat.