Her film career in Germany came to an end at the end of the 20s and she only appeared in the silent movies "La storia di una piccola Parigina" (1928) and "Der Heilige und ihr Narr" (1928).
Her mother was the actress Anni Nest and her sister Ursula Nest became also a child actress in the silent movie era.
Loni Nest became the most busy child actress of the German silent film of the 20s and she took part in several legendary classics.
The child actress Loni Nest came into touch with the film business at a very young age. She already appeared in front of the camera at the age of four weeks for the first time and at the age of one she made her stage debut.
She was not able to continue her film career as an adult. Only in the French production "L'épervier" (33) she acted in her only sound film.