Lenka Arnold is a German actress, singer, and voice actress born in Kassel, Germany, in 1981. She completed her acting training at the Schule für Schauspiel Hamburg and speaks German, English, Spanish, and Czech. Her professional work spans live-action film and television productions in Germany, including roles in series such as SOKO Wismar, Tatort, and Nachtschicht, as well as films like Lindenberg! Mach dein Ding.

In the field of voice acting, Arnold is known for her work in anime dubbing. Her most recognized anime voice role is Hanna in the Japanese series Little Witch Academia, which received a German-language dub. Hanna is a supporting character and a student at the Luna Nova Magical Academy, often seen alongside her friend Barbara as part of Diana Cavendish's social circle. Arnold provided the German voice for the character in this series.

Beyond her work in animation, Arnold has performed additional voice roles for feature films. Her other credited dubbing work includes the German voice for the character Starla Gent in the film Maps to the Stars and the singing voice for a character in the film Ida. There is no widely documented information regarding a consistent pattern of recurring collaborations with specific directors or other voice actors within the anime industry. Her role in Little Witch Academia remains the single confirmed anime credit in her professional profile.