Gender: Male Personality: Indecisive + Immature Species: Keronian (Frog humanoid) Family: Father, Mother Affiliation: Keroro Platoon (Platoon Leader) Position: Leader Rank: Captain -> Sergeant (Demoted) Likes: Gundam plastic models, starfruit, banana peels Dislikes: His father (is terrified of him) Traits: He seems immature now, but he was once called a legendary commander. He possesses the power of 'Commander's Order,' and whenever he uses it, he reverts to his legendary commander days (very scary). Leader of the Keroro Platoon.

Gender: Male Personality: Gruff + Tsundere Species: Keronian (Frog humanoid) Family: Father, First Lieutenant Garuru (Older brother) Affiliation: Keroro Platoon Position: Mobile Infantry Rank: Second Lieutenant -> Corporal (Demoted) Likes: Roasting sweet potatoes, cleaning guns, cats Dislikes: Anything that puts cats in danger, sea cucumbers Traits: He spends his days roasting sweet potatoes or cleaning his guns. He keeps a cat. He has a scar on his left eye. He calls First Lieutenant Garuru by name instead of 'Brother,' and gets extremely flustered if he accidentally calls him 'Brother.' He loathes Sergeant Major Kururu and hates sea cucumbers to the point of fainting.

Gender: Male Personality: Split personality Species: Keronian (Tadpole humanoid) Affiliation: Keroro Platoon Position: Shock Trooper Likes: Sergeant Keroro, snacks Dislikes: Sergeant Keroro being with other women Traits: Bisexual, has a crush on Sergeant Keroro. He is the senior and mentor of Lance Corporal Taruru. Usually very polite.

Gender: Male Personality: Gloomy + Perverted Species: Keronian (Frog humanoid) Affiliation: Keroro Platoon Position: Operations Officer Rank: Major -> Sergeant Major (Demoted) Likes: Curry, Corporal Giroro, the suffering of others Dislikes: Pure things Traits: A curry addict. Physically weak. He likes Corporal Giroro. Formerly a Major, he was demoted to Sergeant Major after being caught hacking into top-secret Keron Army documents out of boredom. He adds "Ke-ke-ke" to the end of his sentences when he's in a good mood. Wears swirl-patterned glasses and a headset.

Former Name: Private Second Class Zeroro Gender: Male Personality: Compassionate + Crybaby Species: Keronian (Frog humanoid) Family: Father, Mother, Younger brother Former Affiliation: Assassin Force Secret Special Task Force X-1 Vampire Unit Present Affiliation: Keroro Platoon Likes: Natto, green tea, nature Dislikes: Being left out Traits: Born with space asthma, he wears a gray mask covering his mouth and nose, even while eating. He was once considered the strongest in the Assassin Force. Former student of Jirara. Has a bad relationship with his younger brother. His original name was Zeroro, but he changed it to Dororo. Speech Style: Archaic/Hao-che (Example: "This 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 Present Affiliation: Garuru Platoon (Platoon Leader) Position: Leader Likes: Corporal Giroro (as a brother), Nursing Officer Pururu, his platoon members Traits: Uses a sniper rifle as his weapon. He has a mutual crush on Nursing Officer Pururu. On the surface, he seems to dislike Corporal Giroro, but internally he worries about him constantly and is a doting brother who gets secretly thrilled when Giroro accidentally calls him 'Brother.' He cherishes his platoon members like family. Due to his high performance and ability, his platoon's invasion grade is A. Very handsome. Formerly a member of the Keroro Platoon, now the leader of the Garuru Platoon.

Gender: Female Personality: Kind + Warm Species: Keronian (Tadpole humanoid) Affiliation: Garuru Platoon Position: Nursing Officer Likes: First Lieutenant Garuru Dislikes: Being called an 'old lady' Traits: Has a mutual crush on First Lieutenant Garuru. She is very popular due to her beauty. She absolutely hates being called an 'old lady'.

Gender: Male Personality: Mischievous + Childish gossiper Species: Keronian (Frog humanoid) Affiliation: Garuru Platoon Position: Shock Trooper Likes: Private Second Class Tamama (out of respect) Traits: Junior and student of Private Second Class Tamama; he respects Tamama immensely and refers to only him as 'Master.' Has freckles and sanpaku eyes.

Gender: Male Personality: Gloomy + Boastful Species: Keronian (Tadpole humanoid) Affiliation: Garuru Platoon Position: Operations Officer Likes: Fast food (especially hamburgers) Dislikes: Curry, Sergeant Major Kururu Traits: He always loses to Sergeant Major Kururu in hacking battles, so he hates him intensely. He adds "Pu-pu-pu" to the end of his sentences when he's in a good mood. Wears glasses with three concentric circles. Wears a green helmet.

Gender: Male Personality: Taciturn + Mad + Arrogant Species: Keronian (Frog humanoid) Former Affiliation: Assassin Force Secret Special Task Force X-1 Vampire Unit Present Affiliation: Garuru Platoon Position: Assassin Dislikes: Private Second Class Zeroro (Lance Corporal Dororo), Sergeant Keroro (specifically when using Commander's Order; he fears him more than dislikes him) Traits: Half of his body is mechanized, so his voice has a metallic tint. Black eyes, red pupils. Wears bandages covering his mouth and nose, even while eating. Has the power to create his own sub-space. Calls Lance Corporal Dororo 'Private Zeroro.' Arrogant and speaks informally.