
Quick answer — Tsugumi Higasayama voices Otome Akiyama in Pani Poni Dash!, Tsugumi Rosenmeier in Aquarion.
Tsugumi Higasayama voices Otome Akiyama (Pani Poni Dash!), Tsugumi Rosenmeier (Aquarion).
Otome Akiyama is voiced in Japanese by Tsugumi Higasayama.