Janis

ジャニス・アレクトス・カロティナス・カリナート

Despite the name, JACK is actually a woman. Her real name is Janis Alectos Carotenas Karinato. She works for the CIA and serves as Manami's acting supervisor. She has noticeable long blond hair, is barely dressed, and is often seen eating fast food, appearing to stereotype American women. She is always seen eating food from A&W restaurants.
She provides Manami with information on hostile groups, even after Manami leaves the CIA. She doesn't appear to get along with the Japan Immigration Bureau, remarking on how they treat people outside their organization as second-rate.