Keroro is a frog-like alien sent from his home planet on a mission to conquer Earth. But when his cover is blown, his battalion abandons him and he ends up in the home of the Hinata family. There, he's forced to do household chores and sleep in a dark basement that was once supposedly a prison cell haunted by the ghost of an innocent girl. He even spends his free time assembling Gundam model kits. During his stay, Keroro meets up with subordinates who were also stranded during their failed invasion. 
 
(Source: Anime News Network)

[Profile (Haikyo)](https://haikyo.co.jp/profile/profile.php?ActorID=10587)

Robert McCollum is an American voice actor who works for anime series at FUNimation Entertainment. He has provided voices for a number of English language versions of Japanese anime films. McCollum is also the host of WFAA-TV's Good Morning Texas.

__Graduated:__ Beit Zvi Actors School of Performing Arts (1991)

__Simcha Barbiro__ is an Israeli actor and voice actor, who is known for his voice-over work animated TV shows and feature films. Some of his prominent work includes the Hebrew dubs for Stitch and Dr. Hamsterviel in Lilo & Stitch: The Series and its anime television adaptation, Mort from the Madagascar series, Harvey Bullock from Batman: The Animated Series, Krillin and Frieza from [Dragon Ball](https://anilist.co/anime/223/Dragon-Ball/) ("[Z](https://anilist.co/anime/813/Dragon-Ball-Z/)" and "[GT](https://anilist.co/anime/225/Dragon-Ball-GT/)").

(Source: [Wikipedia (EN)](https://en.wikipedia.org/wiki/Simcha_Barbiro), edited)

Sergeant Keroro is the Captain of the Space Invasion Forces Special Advance Team of the 58th Planet of the Gamma Storm Cloud System, sent to the planet Pokopen (aka Earth) to collect intelligence for his planet's invasion force. He is also a frog. After his ship crash-lands in the planet earth, he takes shelter in the Hinata household, but the two kids, Fuyuki and Natsume, find him and take away his alien weapons. When his people discover that the Pokopenians are aware of him, Keroro is abandoned - left to fend for himself in this hostile world. But he's not alone - four other pre-invasion agents were are also lurking on Earth. 
 
(Source: Tokyopop) 
 
Includes chapter 6.5.

Baio Nishizawa