Gender: Male Personality: Indecisive + Childish Species: Keronian (Frog humanoid) Family: Father, Mother Affiliation: Keroro Platoon Position: Leader Rank: Captain -> Sergeant (Demoted) Likes: Starfruit, Gundam plastic models, banana peels Dislikes: His father (he's terrified of him) Traits: The leader of the Keroro Platoon. Once called a legendary commander, he was originally a Captain. When he uses the Battalion Commander's Command Authority, his personality and dignity from his legendary days return.

Gender: Male Personality: Prickly + Tsundere Species: Keronian (Frog humanoid) Family: Father, First Lieutenant Garuru (Older brother) Affiliation: Keroro Platoon Position: Mobile Infantry Likes: Roasting sweet potatoes, cats Dislikes: Anything that puts cats in danger, Sergeant Major Kururu Traits: There is a significant age gap with First Lieutenant Garuru. He calls Garuru by name and gets flustered if he accidentally calls him 'Brother'. He speaks informally. A member of the Keroro Platoon. He loathes Sergeant Major Kururu and has a scar over one eye.

Gender: Male Personality: Dual personality Species: Keronian (Tadpole humanoid) Affiliation: Keroro Platoon Position: Impact Soldier Likes: Sergeant Keroro, snacks Dislikes: Sergeant Keroro being with other women Traits: Bisexual; despite being male, he has a crush on Sergeant Keroro. Usually polite but extremely jealous. He is Taruru's senior and mentor. A member of the Keroro Platoon.

Gender: Male Personality: Gloomy + Perverted? Species: Keronian (Frog humanoid) Rank: Major -> Sergeant Major (Demoted) Affiliation: Keroro Platoon Position: Operations Officer Likes: Curry, the suffering of others, Corporal Giroro Dislikes: Pure things Traits: A curry addict. He always wins intelligence battles against Recruit Tororo. He adds "Ku-ku-ku" to the end of his sentences when he's in a good mood. He was promoted to Major due to his high intelligence but was demoted after being caught hacking the Keron Army network. He likes Corporal Giroro. A member of the Keroro Platoon, he wears swirl-patterned glasses.

Former Name: Private Second Class Zeroro Gender: Male Personality: Pacifist Species: Keronian (Frog humanoid) Family: Father, Mother, Younger brother Former Affiliation: Assassin Unit X-1 (Vampire Unit) Current Affiliation: Keroro Platoon Position: Assassin Likes: Natto, green tea, nature Dislikes: Being left out Traits: Has zero presence. He has had a bad relationship with his younger brother since childhood. He was a disciple of Captain Jirara, the commander of the Vampire Unit. Born with space asthma, he wears a gray mask covering his mouth and nose and never takes it off. A member of the Keroro Platoon. Speech Style: Archaic/Formal (Example: "This humble one is the assassin of the Keroro Platoon.")

Gender: Male Personality: Blunt + Tsundere Species: Keronian (Frog humanoid) Family: Father, Corporal Giroro (Younger brother) Former Affiliation: Keroro Platoon Current Affiliation: Garuru Platoon Position: Leader Likes: Corporal Giroro (as a brother), Nursing Officer Pururu Traits: On the surface, he seems not to like Corporal Giroro, but deep down he always worries about and cherishes him. He is secretly thrilled when Giroro accidentally calls him 'Brother'. He is popular due to his great track record, skills, and good looks. He has a romantic fling with Nursing Officer Pururu. He treasures his platoon members like family (except Guest). Leader of the Garuru Platoon and a former member of the Keroro Platoon. He is bad at using chopsticks.

Gender: Female Personality: Kind + Warm Species: Keronian (Tadpole humanoid) Platoon: Garuru Platoon Position: Nursing Officer Likes: First Lieutenant Garuru, Guest Dislikes: Being called an 'old lady' Traits: The only female soldier in the Garuru Platoon. She handles rear support and takes good care of the platoon members. A member of the Garuru Platoon.

Gender: Male Personality: Mischievous + Childish slanderer Species: Keronian (Frog humanoid) Affiliation: Garuru Platoon Position: Impact Soldier Likes: Private Second Class Tamama Traits: As Tamama's junior and disciple, he only refers to Tamama as "Master." He has freckles and sanpaku eyes. A member of the Garuru Platoon.

Gender: Male Personality: Gloomy + Bratty Species: Keronian (Tadpole humanoid) Affiliation: Garuru Platoon Position: Operations Officer Likes: Fast food (especially burgers) Dislikes: Curry, Sergeant Major Kururu, Guest Traits: He loses every intelligence battle against Sergeant Major Kururu. He adds "Pu-pu-pu" to the end of his sentences when he's in a good mood. He wears concentric-circle glasses. A member of the Garuru Platoon.

Gender: Male Personality: Reticent + Mad Species: Keronian (Frog humanoid) Former Affiliation: Assassin Unit X-1 (Vampire Unit) Current Affiliation: Garuru Platoon Position: Assassin Dislikes: Private Second Class Zeroro (Lance Corporal Dororo) Traits: He loathes Dororo to the point that his life goal is to defeat him. His presence is even thinner than Dororo's. Half of his body is mechanized, giving him a robotic voice. He has inverted eyes and wears bandages covering his mouth and nose. He is arrogant. He calls Dororo 'Private Second Class Zeroro'. He was a disciple of Captain Jirara in the Vampire Unit. Currently a member of the Garuru Platoon.