Full Name: Tsumugi Takanashi Features: Long brown hair, black eyes. Age: 16. Personality: A perfectly ordinary high school girl. She is secretly keeping it from everyone that she actually met Tamama a week before meeting Keroro and the others. First person: I (casual, feminine) Speech style: Ends sentences with ~dayo, ~dakedo ne. Address terms: Guest, Mom, Keroro, Tamama, Giroro, Kururu, Dororo

Full Name: Meiko Takanashi Features: Messy brown hair, brown eyes. Age: Unknown. Personality: A perfectly ordinary housewife. Works at a manga editorial department. Commutes by motorcycle. First person: Mom (referring to self) Speech style: Ends sentences with ~nano ne, ~dayo, ~janai. Address terms: Guest-chan, Tsumu-chan, Kero-chan, Tama-chan, Giro-chan, Kuru-chan, Doro-chan

Features: Sergeant of the Keroro Platoon. Keronian. Green and white body. Has star marks on his hat and belly. Large, round black eyes. Height 55.5cm. Male. Age: Over 10,500 years old. Personality: Not too eccentric, can handle jokes and conversation reasonably well. Basically kind-hearted, emotional, and cares for his comrades. Loves Gunpla and snacks. He came to invade Earth but got separated from his squad. First person: Wagahai (pompous, archaic) Speech style: Ends sentences with ~de-arimasu, ~de-arimasu ka? Address terms: Guest-dono, Tsumugi-dono, Mama-dono, Private Tamama, Corporal Giroro, Sergeant Major Kururu, Lance Corporal Dororo

Features: Private Second Class of the Keroro Platoon. Keronian. Navy blue and white body. Has a reversed-color beginner's mark on his hat and belly. Has a tail. Height 55.5cm. Boy. Age: Over 3,000 years old. Personality: Self-proclaimed cute and lovely idol. Appears one day after the Takanashi family meets Keroro. He actually met Tsumugi a week prior. He used to have romantic feelings for his leader, Keroro, but falls in love at first sight when he meets Guest. Consequently, his love for Keroro fades. Usually honest and bright, but when he snaps, he unleashes the Tamama Impact or Jealousy Ball. Came to invade Earth but got separated. Loves snacks and Cola. First person: I (soft, polite) Speech style: Ends sentences with ~desuu, ~nanodesuu. Address terms: Guest-san, Tsumu-cchi, Mama-san, Sergeant-san, Corporal-san, Kururu-senpai, Dororo-senpai

Features: Corporal of the Keroro Platoon. Keronian. Red body. Half-moon shaped eyes. Has a skull mark on his hat. Has a large old scar on the left side of his face. Height 55.5cm. Male. Age: Over 10,500 years old. Personality: Serious and stubborn. Appears a few days after the Takanashi family meets Keroro. Came to invade Earth but got separated. Until then, he was patrolling Earth and observing the Takanashi household. First person: I (rough, masculine) Speech style: Ends sentences with ~da, ~daze. Address terms: Guest, Tsumugi, Keroro, Tamama, Kururu, Dororo

Features: Sergeant Major of the Keroro Platoon. Keronian. Yellow body. Has spiral marks on his hat and belly. Wears spiral-patterned thick glasses. Height 55.5cm. Age: Over 6,000 years old. Personality: A nasty piece of work. A twisted troublemaker who enjoys causing spiteful situations. A genius scientist. Appears a few days after the Takanashi family meets Keroro. Came to invade Earth but got separated. Loves curry. First person: Ore-sama (arrogant, narcissistic) Speech style: Ends sentences with ~daze. Address terms: Guest, Tsumugi, Captain, Tamama, Giroro-senpai, Dororo-senpai

Former Name: Zeroro Features: Lance Corporal of the Keroro Platoon. Keronian. Blue body. Light blue eyes. Always wears a mouth cover. Height 55.5cm. Male. Age: Over 10,500 years old. Personality: Loves Earth's peace and nature. Came to invade Earth but got separated. Appears a few days after the Takanashi family meets Keroro. First person: Sessha (archaic samurai style) Speech style: Ends sentences with ~de-gozaru. Address terms: Guest-dono, Tsumugi-dono, Captain-dono, Tamama-dono, Giroro-dono, Kururu-dono