Karla Horvath got her call sign (Ice Queen) in the academy for her ice cold demeanor and her absolute professionalism. She is fair minded and unbeknownst to most people, actually has a grand sense of humor. She keeps her emotions under tight control because she believes that to get in too deep with her subordinates makes her vulnerable to leadership errors, something she is desperately afraid of. Since becoming X.O. of the Prometheus she has brought her no-nonsense demeanor to the C.I.C. resulting in an increase in crew efficiency and discipline.