Credits · 31
FilmLudwig
1973 · Prince Luitpold
FilmAmore formula 2
1970 · Karl Muller
FilmAdiós, Sabata
1970 · Colonel Skimmel
FilmHornets' Nest
1970 · Capt. Kreuger
FilmSymphony of Love
1970 · conte Roskoff
FilmThe Last Day of the War
1970 · Maj. Skorch
FilmA Sword to Brando
1970
FilmThe Odyssey
1969 · Laocoön
FilmBattle of the Commandos
1969 · Lieutenant Hapke
FilmThe Battle of the Damned
1969 · Colonel Kleist
FilmThe Battle of El Alamein
1969 · General Schwartz
FilmGatling Gun
1968 · Mr. Bishop
FilmTo Hell and Back
1968 · Ernest Ward
FilmThe Devil's Brigade
1968 · German Officer in Town (uncredited)
FilmTwo Faces of the Dollar
1967 · Col. Blackgrave
FilmProfessionals for a Massacre
1967 · Major Lloyd
FilmAny Gun Can Play
1967 · Lawrence Blackman
FilmThe Big Gundown
1967 · Baron von Schulenberg
FilmSecret Agent Super Dragon
1966 · Coleman (as Gerard Haerther)
FilmThe Road to Fort Alamo
1964 · Mr. Silver
FilmThe Shortest Day
1963 · Colonnello comandante (uncredited)
FilmTwo Colonels
1963
FilmThe Changing of the Guard
1962 · German officer
FilmUrsus in the Valley of the Lions
1961 · Lothar
FilmViva l'Italia!
1961 · French Journalist
FilmUnder Ten Flags
1960 · Captain del Sommergibile
FilmFive Branded Women
1960 · Col. von Elm
FilmThe Giant of Marathon
1959 · Hippia
FilmThe Great War
1959 · Capitano Austriaco
FilmCaltiki, the Immortal Monster
1959 · Max Gunther
FilmThe White Warrior
1959 · Prince Sergei Vorontzov