Mitchiko Azarcon-Tiongson is a voice actor known for her extensive work in the English dubbing of anime series and films, particularly for adaptations produced for Southeast Asian audiences. Her career encompasses a wide range of roles, performing in both English and Tagalog language dubs for numerous prominent anime titles.

Her filmography demonstrates a consistent presence in the anime dubbing industry, with credits spanning various genres and character types. In the series Gokyōdai Monogatari, she provided the voice for the character Onei. She played two distinct roles in the anime adaptation of the visual novel To Heart, voicing both Akari Kamigishi and the robot character Multi for the MagnaVision English dub. For the fantasy adventure series The Tower of Druaga: The Aegis of Uruk, she voiced the character Coopa in the Animax English dub. In the science fiction series Toward the Terra, she voiced the character Physis for the Animax English dub, a role also handled by Sanae Kobayashi in the original Japanese. Her work also extends to animated films, such as providing the voice of Minka in the Animax English dub of the movie Origin ~Spirits of the Past~.

Beyond these roles, Azarcon-Tiongson has an extensive body of work. Her credits include voicing Kurapika, Komugi, and Neferpitou in various adaptations of Hunter × Hunter, as well as Aquarius, Evergreen, Happy, and Juvia Loxar in Fairy Tail. She has also taken on significant roles in series such as Fullmetal Alchemist as Alphonse Elric, Toradora! as Minori Kushieda, and Azumanga Daioh as Tomo Takino and Sakaki, among many others. Her work is not limited to performing; she has also contributed to anime production as an ADR script writer for series like Corrector Yui and Great Dangaioh, and as a dubbing director for the Animax dub of InuYasha: The Final Act and the Tagalog version of Baki Hanma.