In the start of Mobile Suit Gundam SEED, Lacus is a good natured and popular female vocalist from the space colony PLANT.

Late in the war between the races of Coordinators and Naturals, Lacus becomes the co-leader of the Clyne Faction, joining with the Archangel to stop both sides from fighting.

Moreover, publications for manga, anime and other media have commented on Lacus' character, giving her praise; speculations regarding her role in the series were made, but in the end it was found surprising.

[10] At the start of Mobile Suit Gundam SEED Destiny, Lacus is living with Kira at Reverend Malchio's orphanage in the Marshall Islands.

Later, Lacus and Kira reveal to the crew of the Archangel Durandal's plan to assign behavioral genes to every human being in order to render war and conflict obsolete.

[38][39] In the 2007 Seiyu Awards, Rie Tanaka was a nominee in the category "Best Actresses in supporting roles" for her portrayal as Lacus in the Gundam SEED Destiny OVA, but lost to Ami Koshimizu and Yuko Goto.

When Gundam SEED was during its first episodes in Japan, Ever Cheung from Animefringe wondered about the future regarding Lacus and Kira as he noticed the two about to embrace in the anime's opening theme.

[43] Ross Liversidge from UK Anime Network stated he did not expect Lacus's faction entrance to the war in the last episodes from Gundam SEED as it emphasized the disasters happening within the series.

[45] Moreover, Chris Beverdige, also writing for Mania, found Lacus' development throughout these episodes interesting and at the same time comical due to the design of her ship and how it is decorated by the Haros she possesses.

[46] While reviewing Gundam SEED Destiny, Liversidge stated that Lacus had become "a cult" within the series' setting due to how besides being pop-idol, she is backed up by a large number of soldiers.

Lacus' public appearance in the series to reveal that Meer Campbell was impersonating her and state her true intentions was also called "totally mesmerising" by Liversidge.

[47] Chantal Strand was praised for her performance as both Lacus's and Meer's English voice actress by Anime News Network writer Theron Martin for giving them quality distinct from the original Japanese version despite finding it varying at some points.