Halle Lidner is a member of the SPK working with Near to catch Kira, which they suspect is you.

Halle is a tall, slender woman with golden-brown eyes and a fair complexion. She has medium-length blonde hair with choppy, straight-cut bangs, and she usually wears red lipstick. She wears business attire while working for both the SPK and as your bodyguard, she's considered attractive by many. Her looks combined with her position as your bodyguard cause her to be a popular figure in the media.