Kathiyin Perez Masilungan is a Filipino voice actor recognized for their work in the Tagalog dubbing of anime series, particularly during the period when localized versions of these shows were regularly broadcast on Philippine television. Their career is primarily associated with providing voices for characters in anime adaptations aimed at Filipino audiences, contributing to the accessibility and popularity of these series in the region.

One of their notable roles is Paola in the anime series Beet the Vandel Buster Excellion, the second season of the Beet the Vandal Buster franchise. In this series, they voiced the character, adding to the Filipino-dubbed version of the show. Beyond this role, Kathiyin Perez Masilungan has been involved in other significant anime dubs. They voiced Fuuko in the Tagalog adaptation of Flame of Recca, a series centered on a young protagonist with fire-based abilities. Another prominent role is Misao Makimachi in the Filipino dub of Rurouni Kenshin, where they brought to life the character known for her energetic and determined personality set in the Meiji era.

Throughout their career, Kathiyin Perez Masilungan has been part of the voice cast for multiple anime projects, often working alongside other Filipino voice talents and dubbing studios that specialize in localizing Japanese anime. While specific details about recurring collaborations with particular directors or studios are not extensively documented, their participation in several key anime titles indicates a sustained involvement in the industry. Their work has contributed to the Filipino dubbing landscape, helping to make anime accessible to local viewers who prefer or require Tagalog-language content.

Notable achievements for Kathiyin Perez Masilungan include their contributions to widely remembered anime series from the era when Filipino-dubbed anime enjoyed considerable viewership. Their performances in roles such as Paola, Fuuko, and Misao have been part of the collective experience for Filipino anime fans, who often recall these dubs fondly. Although formal accolades or awards are not prominently recorded, their presence in these productions underscores their role in the voice acting community and the cultural impact of localized anime in the Philippines.