Jean Mamy (8 July 1912, Chambéry, Savoie – 29 March 1949, Arcueil) was a French actor, producer, film and theatre director, screenwriter, film editor, and journalist, notable for directing the anti-Masonic propaganda film Forces occultes under the pseudonym "Paul Riche". He belonged to the inter-war left, acting in René Clair's 1924 Dada film Entr'acte and editing Jean Renoir's 1931 On purge bébé. Subsequently, he directed a number of films in the series "Une heure d'angoisse" based on the novels written by Marcel Allain for the Éditions Ferenczi.
https://en.wikipedia.org/wiki/Jean_Mamy