Iwona is a very calm and collected individual. She spends a lot of time thinking about the consequences of her words and actions, and pays special attention to time. She hates being late.
She is often seen wearing a large blue coat, and gets extremely defensive if you do so much as ask her to take it off (even if out of concern, due to heat). When talking, Iwona unintentionally stares people down with an icy, dead, unwavering gaze.
In the courtroom, Iwona had a fierce but teetering loyalty to her clients; she would occasionally completely turn on the defendant, even though she was their attorney; "In good consience," she would say, "[she] cannot continue to defend [her] client."
The given name "Iwona" is a Polish variant of "Yvette", the feminine form of Yves. This may be a reference to Saint Ivo of Kermartin, the patron saint of lawyers.
Iwona's surname, "Zadar", comes from the Romanian phrase "in zadar", meaning "in vain".