For the Dutch and German version of Frozen I and II (Die Eiskönigin) , Frozen Fever (Party Fieber) and Olaf’s Frozen Adventure (Olaf taut auf) Willemijn can be heard as the voice of Elsa. For the Dutch versions she recorded the singing and speaking voice. For the German versions the singing voice. In 2023-2024 she portrayed the role in the musical Die Eiskönigin in Hamburg Germany.
