ADV Films had initially licensed the series for a North American release back in 2006, but the rights were pulled and handed to Funimation when ADV began to run into deep financial trouble.
Funimation initially released a ten minute "Test" dub sample episode of Sgt. Frog to YouTube and received mixed reviews for the changing of characters' names, as well as some voice acting. The first 5 episodes of the official dub was screened at an anime convention, and was much more well received than the test episode for the restoring of all original character names, revised voice cast, and staying more true to the original script.
Differences from the original animeEdit
- Koneko has been renamed Ms. Furbottom
- Many jokes and references to other media were changed to appeal more to the American audience.
- The year has been changed to 2009. (This is out of necessity as it was not released in America for quite long about after it was released. A calendar in Apocalypse Later remains labeled 2004, but Fuyuki uses this to make an amusing fourth wall joke.)
- The narrator breaks the fourth wall more frequently.
- Season 1 Part 1 (Episodes 1-13) - September 22, 2009
- Season 1 Part 2 (Episodes 14-26) - November 24, 2009
- Season 2 Part 1 (Episodes 27-39) - January 26, 2010
- Season 2 Part 2 (Episodes 40-52) - March 30, 2010
- Season 1 Complete (Episodes 1-26) - March 29, 2011
- Season 2 Complete (Episodes 27-51) - April 26, 2011
- Season 3 Part 1 (Episodes 53-67) - July 26, 2011
- Season 3 Part 2 (Episodes 66-78) - August 16, 2011
- Season 3 Complete (Episodes 52-78) - November 13, 2012
- Keroro - Todd Haberkorn
- Giroro - Christopher R. Sabat
- Dororo - J. Michael Tatum
- Tamama - Brina Palencea
- Kururu - Chuck Huber
- Fuyuki Hinata - Leah Clark
- Natsumi Hinata - Cherami Leigh
- Aki Hinata - Jamie Marchi
- Momoka Nishizawa - Monica Rial
- Paul Moriyama - Kent Williams
- Koyuki Azumaya - Luci Christian
- Angol Mois - Carrie Savage