List of Sgt. Frog characters
Wikimedia list article

The following is a list of various characters in the universe of the anime and manga series Sgt. Frog and related works.
Keroro Platoon
The Keroro Platoon (ケロロ小隊, Keroro Shōtai) is led by Sergeant Keroro. While most platoons contain thirty or forty soldiers, the Keroro Platoon only has a meager five. Its full name is the Gamma Planetary System, the 58th Planet, Space Invasion Army Special Tactics Platoon (ガマ星雲 第58番惑星 宇宙侵攻軍特殊先行工作部隊, Gama Seiun Dai Gojūhachiban Wakusei Uchū Shinkōgun Tokushu Senkō Kōsaku Butai). In the anime's English dub, the unit is referred to as the Advance Recon Mission Preparatory Invasion Terror Platoon (A.R.M.P.I.T.). Keroro refers to the acronym as being "unfortunate."
The initial operation of the Keroro Platoon was to stealthily survey Earth and relay information to the awaiting Keron Invasion Army. The five members were dispatched throughout Greater Tokyo and the surrounding areas to assess Earth's weakness and prepare for a total military takeover. Having infiltrated the Hinata house, Sergeant Keroro concealed himself in one of the bedrooms, but was accidentally discovered by the Hinata children, a pair of middle-school siblings. Shocked by their ability to see him, he was overpowered, captured, and temporarily stripped of his weapon, the Kero Ball.
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