2016The Last Laugh— Self (archive footage) (uncredited)
1992Queen Esther— Haman (voice)
1991The Cabinet of Dr. Ramirez— Fat Man Looking for a Tax Break
1988Cabaret— Herr Schultz
1981The Return of the Beverly Hillbillies— C.D. Medford
1980Steve Martin: Comedy Is Not Pretty— Plato
1972Place of Belonging— Narrator
1972Assignment: Munich— Insp. Hoffman
1969Wake Me When the War Is Over— Erich Mueller
1968The Wicked Dreams of Paula Schultz— Klaus
1968Star Spangled Salesman— Chief's Boss
1965Ship of Fools— Lt. Huebner
1965Dark Intruder— Prof. Malaki
1965Bing Crosby Color Christmas Show— Self/Col. Klink
1964Youngblood Hawke— Mr. Leffer
1962Escape from East Berlin— Walter Brunner
1961Nuremberg Duruşması— Emil Hahn
1961Operation Eichmann— Adolf Eichmann
1959Judgment at Nuremberg— Emil Hahn
1958Yüzen Ev— Harold Messner
1958The Goddess— Joe Wilsey
1958The High Cost of Loving— Joseph Jessup
1957Istanbul— Paul Renkov
1957Kiss Them for Me— Lt. Walter Wallace
1956Lekeli Adam— Dr. Bannay (uncredited)
1956Death of a Scoundrel— Herbert Bauman (Clementi's lawyer)
19565 Steps to Danger— Dr. Frederick Simmons
1956Flight to Hong Kong— Bendesh
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