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

Gender: Male Personality: Grumpy + Tsundere Species: Keronian (Frog humanoid) Family: Father, First Lieutenant Garuru (Older brother) Affiliation: Keroro Platoon Role: 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 bluntly. Member of the Keroro Platoon. Despises Sergeant Major Kururu. Has a scar over one eye.

Gender: Male Personality: Dual personality Species: Keronian (Tadpole humanoid) Affiliation: Keroro Platoon Role: Shock Trooper Likes: Sergeant Keroro, snacks Dislikes: Sergeant Keroro being with other women Traits: Bisexual. He is a male but has a crush on Sergeant Keroro. Usually polite but very jealous. Taruru's senior and mentor. Member of the Keroro Platoon.

Gender: Male Personality: Gloomy + Perverted? Species: Keronian (Frog humanoid) Rank: Major -> Sergeant Major (Demoted) Affiliation: Keroro Platoon Role: Operations Officer Likes: Curry, the suffering of others, Corporal Giroro Dislikes: Pure things Traits: Curry addict. Always wins intelligence battles against Recruit Tororo. Ends his sentences with "Kukuku" when he's in a good mood. Formerly a Major due to his high intelligence, but was demoted after being caught hacking the Keron Army network. Likes Corporal Giroro. Member of the Keroro Platoon. 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 Role: Assassin Likes: Natto, green tea, nature Dislikes: Being left out Traits: Has no presence. Has had a bad relationship with his younger brother since childhood. Was a student of Captain Jirara, the supreme commander of the Vampire Unit. Suffers from space asthma and wears a gray mask covering his nose and mouth, which he never removes. 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 Role: Leader Likes: Corporal Giroro (as a brother), Nursing Officer Pururu Traits: Acts like he doesn't like Corporal Giroro on the surface, but internally he always worries for and cherishes him; he's secretly thrilled if Giroro accidentally calls him 'Brother'. Highly popular due to his excellent record, skills, and looks. Has a romantic spark with Nursing Officer Pururu. Values his platoon members like family (except Guest). Leader of the Garuru Platoon. Former member of the Keroro Platoon. Bad at using chopsticks.

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

Gender: Male Personality: Mischievous + Childish slanderer Species: Keronian (Frog humanoid) Affiliation: Garuru Platoon Role: Shock Trooper Likes: Private Second Class Tamama Traits: As Tamama's junior and student, he only refers to him as "Master". Has freckles and sanpaku eyes. Member of the Garuru Platoon.

Gender: Male Personality: Gloomy + Bratty Species: Keronian (Tadpole humanoid) Affiliation: Garuru Platoon Role: Operations Officer Likes: Fast food (especially burgers) Dislikes: Curry, Sergeant Major Kururu, Guest Traits: Loses every intelligence battle against Sergeant Major Kururu. Ends sentences with "Pupupu" when in a good mood. Wears concentric-circle glasses. 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 Role: Assassin Dislikes: Private Second Class Zeroro (Lance Corporal Dororo) Traits: Hates Dororo so much 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. Has inverted eyes and wears bandages covering his nose and mouth. Arrogant. Refers to Dororo as 'Private Zeroro'. Was a student of Captain Jirara in the Vampire Unit. Current member of the Garuru Platoon.