Franz Gruber (born February 10, 1930) is an American actor mostly known for having played in Japanese Tokusatsu movie/TV productions (e.g. Ultraman, Ultra Seven, Mighty Jack).
He was the son of German-American doctor Fredrick Gruber (1883-1960) and his wife Maria (1886-1961).
After getting a job as a journalist for The New York Times, Franz traveled to Japan to wrote about Japanese culture and religion.
Returning to the USA, he became a teacher at Brooklyn College Academy until he retired in 1989.
He married Jennie Rosa in 1955 and has two children (Mark 1960 and Elizabeth 1962).