Like most Spartans, Naomi is very calm and generally stoic. She is very curious, a trait she has retained from her childhood. She was interested in astronomy[36] and wanted to know more about her father, Staffan Sentzke, after learning that he is an Insurrectionist. Consistent with the exceedingly high qualifications required of a SPARTAN-II, she was regarded as a gifted child and demonstrated exceptional intelligence. This was also noted by a CAA educational psychologist who had visited her school to perform tests on the children.[37] She is noted by John-117 as having an exceptional ability to comprehend unfamiliar weapons and armor, and their functionality, even saying that she was the first spartan to understand the functionality of the Covenant’s carbines and their own armor’s reactive circuits.[8]
When talking about her thoughts of her past, mainly about her father, with other members of Kilo-Five she tends to snap back to being abrasive rather than somewhat friendly. Most of the time she is not this way and is her usual, quiet self unless she manages to joke with her team, but she quickly corrects herself and is back to being hardened and quiet again.
Naomi is the only Spartan known to have been issued the Mark VII Mjolnir armor. Her suit closely resembles the Mark V , which may be a stylistic choice on her part. It sports a purplish-blue color scheme and a reflective orange visor. Before the events of Infinite.