Sieghardt Rupp (Bregenz, June 14, 1931 – Vienna, July 20, 2015) was an Austrian actor. Trained in theater, he became a permanent member of the prestigious Volkstheater in Vienna before dedicating himself to film and television. He achieved international fame for his portrayal of the bandit Esteban Rojo in Sergio Leone's film *A Fistful of Dollars* (1964), which established him as one of the iconic faces of the Spaghetti Western genre. His career includes numerous appearances in German-language film and television productions, where he became particularly popular for his role as customs inspector Kressin in the crime series *Tatort*, which he played from 1971 to 1973. For this performance, he received the prestigious German television award, the Goldene Kamera, in 1971. A versatile actor, he successfully moved between genre films and popular television productions, retiring from acting in the mid-1990s.