Keroro Character_friends

A Space Detective in Sgt. Frog series who is a childhood friend of Keroro. is assited by his little sister Lavie.

Fuyuki and Natsumi's mother. Aki is a manga editor who decided to base the main character of her latest manga on Keroro.

The "Queen of Terror" who was sent to planet Earth to arrive in July 1999 for Earth's destruction, as predicted by Nostradamus but arrived 500 years too early and takes a nap in orbit, until she wakes up 5 years late. Now she assists Keroro in conquering the planet.

The assassin of the Keroro Platoon who was formerly known as Zeroro. After crash landing on Pekopon, Zeroro was rescued by ninja-in-training Koyuki Azumaya. Wishing to follow the way of the ninja, he changed his name to Dororo and will not participate in plans that cause destruction to Earth.

Natsumi's little brother who has a fascination with the paranormal.

Corporal of the Keroro Platoon and their weapons expert. Giroro only weakness is his love of Natsumi Hinata, something everyone but Natsumi seems to know. Giroro is so protective of Natsumi that he would attack anyone who harms her.

A kunoichi who falls in love with Natsumi and is close friends with Dororo

The head of communications in the Keroro Platoon. Despite he is of a higher rank than Keroro, he is not the leader of the Platoon due to his unpleasant and unnerving demeanor. Kululu's expertise lies in his high-level technological prowess, including hacking and inventing.

The younger sister of 556 who assists her brother by working in various part-time jobs.

The older sister of Fuyuki and the one in charge of the Hinata house when their mother is not home. She is very strict on Keroro and always doubts of his intentions, physically abusing him on several occasions and treating him as a slave.

The Ghost residing in the Hinata household.

The chief medic and expert nurse of the Keroro Platoon. She has known Sergeant Keroro, Corporal Giroro, and Lance Corporal Dororo since they were young.

An Alien pop star from the Sgt. Frog series.

The youngest member of the Keroro Platoon. Tamama idolizes and has strong feelings towards Keroro because of this He hates Moa and see her as a rival for Keroro's affection. When in battle he can fire a energy blast from his mouth called "Tamama Impact".