"Who am I?" (Can you solve this mystery?)

Last night I saw for the first time the Austrian 1961 production "Der Ruf der Wildgänse" based on the then famous book by Martha Ostenso.

It tells the story of an immigrant family living in the outback in Canada at the beginning of the 20th century. The father rules his family and the nearby trading post with iron hand untill disaster strikes. Marisa Mell, in her early twenties, played the eldest daughter "Judith" having enough of the tyrany of her father. It's what the German's call a "Heimat"-movie. The exterior scenes were completely shot in Canada which at that time was very expensive to do and an absolute rarity for an Austrian movie production to fly all the way to the other side of the world to shoot on location. The interior scenes were shot in Vienna on a sound stage! The cast was made up by mainly Austrian and some German actors and actresses like Horst Janson, Gertraud Jesserer and...Hans H. Neubert.

Wenn you follow the career of Marisa Mell you come across a lot of known names of Eurocult stars in her filmography like John Phillip Law, Adolpho Celi, Robert Hossein, Jean Marais, Ursula Andress, Virna Lisi, Claudine Auger, Ushi Glass, Bruno Cremer, Antonio Sabbatto sr.... the list goes on and on... but then... you stumble across a name that you have never heard off: "Hans H. Neubert". Who???

Thankfully in this day and age you have the internet as a never ending source of information on everything that your heart desires. So a quick check on IMDB, Wikipedia and some specialised cult movie sites will give you a quick answer who this guy is, where he comes from and what he has done in his life at that point in time to gain a place in a movie with Marisa Mell. Mmmmm! Strange! There is not much to be found about this actor! Only IMDB gives him about 8 acting roles where 4 of them are roles in television movies and 4 are roles in cinema movies that hardly anybody remembers to this day. Of them all the best known film is a 1961 French western directed by Robert Hossein called "Le Goût de la Violence" with Robert Hossein and Mario Adorf in the main parts. For the rest there is not much else to be found about him. No date of birth or death, no reasons why he stopped filming around 1967, no mentioning what he did after his film career or what he is doing now! This actor is to me a complete mystery.

CAN YOU SOLVE THIS MYSTERY???