Overview
- Colleague Cecilia Gispert disclosed the death on social media, with industry and fan accounts amplifying the news.
- Klein died on December 11, 2025 in Germany at age 83, a few days before her 84th birthday.
- No cause of death has been made public.
- She voiced Mafalda in animated adaptations and performed the Spanish‑Latin opening and closing songs for Candy Candy.
- Her credits also include dubbing Lois (Luisa) Lane in the 1983 film Superman III, capping a career that spanned theater, singing and dubbing across Argentina and Europe.