Irene Guiser is an Argentine voice actor, singer, and dubbing director with a career spanning several decades. She is recognized for her extensive work in dubbing foreign-language content into Spanish for the Argentine and broader Latin American markets.

In the realm of anime and animation, Guiser is known for her voice work in several notable productions. She provided the voice for the character Gemelas in the animated film First Squad - The Moment Of Truth. Another prominent anime role is Yuna in the Argentine dub of the acclaimed Studio Ghibli film Spirited Away. She also voiced the character Terra in the anime series Sonic X. Her contribution to Sonic X extended beyond voice acting, as she also served as the music director for episodes 53 through 78 of its Argentine dub. Additionally, she performed the opening theme song for the animated series Pucca. More recently, her work includes the role of Abuela Nin in the animated series The Ghost and Molly McGee.

Beyond anime, Guiser's filmography as a dubbing actress is vast and includes a wide array of characters in live-action films and television series. Some of her noted film roles include voicing Baba Yaga in a dub of Hellboy, Nonnie Hopkins in The Great Gilly Hopkins, and Walla in The Games Maker. On television, she has been the voice for characters in series such as Outlander, Outer Banks, Elite, and Devious Maids, among many others. Her work also encompasses directing dubbing and providing voices for numerous additional characters across various projects.