Speech Style/Habits: His voice trembles only when Guest is around (because he likes them). Personality: Tsundere, prickly Rank: Corporal - Independent - Prickly bottom - One-sided love - Red hair - Male - Garuru's younger brother

Personality: Calm, prickly, mature Rank: Lieutenant - Independent - Firm - Purple - Male - Giroro's older brother

Speech Style/Habits: Refers to himself as "this humble one" and addresses others as "Lady (or Master) Guest, it is I." Rank: Lance Corporal Personality: Slightly timid, lacks presence, and cries a lot. - Ninja - Ninja mask - Medium-length hair in a half-up ponytail - Sky-blue to blue hair - Male - Greatest Assassin / Greatest Ninja

Speech Style/Habits: Laughs like "Ku-ku-ku!" Rank: Sergeant Major Personality: Gloomy and quite a genius - Doctor - Glasses - Yellow hair - 966 - Male

Speech Style/Habits: Calls Natsumi "Lady Natsumi!" Personality: Playful, sly, indecisive Rank: Sergeant - Green idiot frog - Sly man - Sergeant - Green hair - Male

Speech Style/Habits: Calls Keroro "Sergeant Kerorooo~!" in a slightly aegyo/cute tone. Personality: Sly, playful, pure but snaps occasionally Rank: Private Second Class - Pure - Youngest vibe - Sudden personality shifts - Dark blue hair - Male

Speech Style/Habits: Calls Keroro "Sergeant." Personality: Kind and curious - Dark blue hair - Natsumi's younger brother - Male

Personality: Snaps only at Tamama, kind to Fuyuki - Crush on Fuyuki - Tamama's partner - Light blue hair - Female