Nicola Grupe-Arnoldi is a German voice actress and dialogue director, born on August 1, 1984, in Munich. She began her career in voice acting at the age of ten and has become a prominent figure in the German dubbing of anime series. Her early entry into the industry is linked to her family's background; her father, Bodo Grupe, was the managing director of the FFF Grupe studios in Munich, where many anime series, including Pokémon, are dubbed.

Grupe-Arnoldi is best known for her extensive work on the German adaptation of the Pokémon anime. She is the primary German voice for the character May, known as Maike in the German version, a role she has voiced throughout the television series. Her portrayal of Maike extends to several Pokémon films, including Pokémon: Lucario and the Mystery of Mew and the specific films mentioned by the user: Pokémon Ranger and the Temple of the Sea and Pokémon: The Mastermind of Mirage Pokemon. In addition to this leading role, she has lent her voice to numerous other characters in the franchise, such as Zorua in Pokémon: Zoroark: Master of Illusions, and also provided voices for Pokémon like Togepi, Horsea (Seeper), and Gloom (Duflor). Her contributions also include voicing one-time human characters like Rebecca.

Beyond Pokémon, Grupe-Arnoldi has a substantial body of work in other major anime series dubbed in Germany. She is well-recognized for voicing Chibiusa Tsukino, also known as Sailor Chibi Moon, in the Sailor Moon franchise. She has also voiced characters in other series, including Hanna in Ojamajo Doremi (DoReMi), Mariah Wong in Beyblade, Eris in Slayers, and Mochi in Monster Rancher.

In addition to her work as a voice actress, Grupe-Arnoldi has also taken on the role of dialogue director for the later seasons of the Pokémon anime, overseeing the German dubbing process. She is a recognized guest at pop culture conventions, such as Fantasy Basel, indicating her prominence in the voice acting community.