Ángela Olssen is a Mexican actress specializing in dubbing and musical theater, recognized for her work in bringing anime and live-action characters to Spanish-speaking audiences. Her voice is well-known to fans of the medium, most notably for her portrayal of the lead role of Shōko Nishimiya in the critically acclaimed film A Silent Voice. Olssen's preparation for a career in voice acting and dubbing included training under prominent figures in the industry such as Carlos Segundo, Octavio Rojas, Noé Velazquez, and Ernesto Lezama. Her vocal education also extends to singing, with studies in Mexico, France, and the United States under opera singers like Enivia Muré and Isabel Garcisanz, as well as musical theater vocal coaches.

Her filmography includes a variety of anime roles beyond her most famous part. She provided the voice for Uzume in the series Fénix (Phoenix) and voiced both a young Black Jack and his mother in Black Jack 21. She also contributed additional voice work for the films When Marnie Was There and Evangelion 3.33 You Can (Not) Redo, and voiced a fox demon in Inuyasha The Final Act. In addition to anime, Olssen's dubbing work spans a wide range of live-action television and film. She has lent her voice to characters in popular series such as Game of Thrones, Law & Order: Special Victims Unit, and Westworld, and has performed in Mexican Spanish dubs for movies like La La Land and Slenderman.

Olssen is also an accomplished stage actress with experience in both plays and musical theater. Her theater work in Mexico includes productions such as Un sólo ideal, Lo oculto cotidiano, Departamento de Solteras, and the musicals Una Noche en el Edén Sideral and Dentro del Bosque. She has also worked on stage productions in the United States, including The Hunchback of Notre Dame and The Pirates of Penzance. Her versatility as a performer is further demonstrated by her work in video games, where she voiced characters in Fat Princess: Adventures for the PlayStation 4. Through this extensive and varied body of work, Ángela Olssen has established herself as a versatile and active figure in the world of dubbing and performance.