Editing Mary-Kate and Ashley in Action! (section)

==Production==
The series was first announced by DualStar and the then-[[Disney]]-owned DIC Entertainment in March 1999. Initially, the series was going to be based on the Trenchcoat Twins personas.<ref>{{Cite web |url=https://variety.com/1999/tv/news/olsen-twins-pact-for-disney-toon-1117492362/ |title=Olsen twins pact for Disney toon |date=17 March 1999 |access-date=2024-01-09 |archive-date=2024-01-09 |archive-url=https://web.archive.org/web/20240109174052/https://variety.com/1999/tv/news/olsen-twins-pact-for-disney-toon-1117492362/ |url-status=live }}</ref>

By 2000, the series had become a co-production of DIC and [[Canal J]], under the tentative title '''''Action Girls'''''. 52 episodes were tentatively planned for the series.<ref>{{Cite web|url=https://kidscreen.com/2000/12/01/30465-20001201/|title=What's developing in kids production|access-date=2020-12-16|archive-date=2022-08-08|archive-url=https://web.archive.org/web/20220808162533/https://kidscreen.com/2000/12/01/30465-20001201/|url-status=live}}</ref>

After its premiere on [[American Broadcasting Company|ABC]] in the United States, in November 2001, DIC pre-sold the series internationally to [[CITV]] (and later [[Nickelodeon (British and Irish TV channel)|Nickelodeon]] as well) in the UK, [[Canal J]] in France, [[Mediaset]] in Italy, [[YTV (TV channel)|YTV]] in Canada and [[Disney XD (Latin America)|Fox Kids Latin America]].<ref>{{Cite web|url=https://www.c21media.net/news/dic-scores-raft-of-toon-sales/|title=DIC scores raft of toon sales|access-date=2021-05-23|archive-date=2021-05-23|archive-url=https://web.archive.org/web/20210523233325/https://www.c21media.net/news/dic-scores-raft-of-toon-sales/|url-status=live}}</ref>

In April 2002, [[Televisa]] in Mexico and [[RTÉ]] in Ireland purchased broadcast rights to the series in their respective countries.<ref>{{cite web | url=https://www.animationmagazine.net/2002/04/dic-announces-post-mip-intl-toon-sales/ | title=DIC Announces Post-MIP Int'l Toon Sales | date=30 April 2002 | access-date=15 November 2022 | archive-date=15 November 2022 | archive-url=https://web.archive.org/web/20221115192621/https://www.animationmagazine.net/2002/04/dic-announces-post-mip-intl-toon-sales/ | url-status=live }}</ref>