Werner Klemperer
- Queen Esther
1992 Haman (voice)
- The Cabinet of Dr. Ramirez
1991 Fat Man Looking for a Tax Break
- Law & Order
1990 William Unger
- The Simpsons
1989 Colonel Klink (voice)
- Cabaret
1988 Herr Schultz
- Mr. Sunshine
1986
- Matt Houston
1982 Felix Randolph
- The Return of the Beverly Hillbillies
1981 C.D. Medford
- Steve Martin: Comedy Is Not Pretty
1980 Plato
- Vega$
1978
- Tabitha
1977
- The Rhinemann Exchange
1977 Franz Altmuller
- The Love Boat
1977 Mr. Perkins
- Place of Belonging
1972 Narrator
- Assignment: Munich
1972 Insp. Hoffman
- McMillan & Wife
1971 Dr. Ernest Bleeker
- Night Gallery
1970
- Wake Me When the War Is Over
1969 Erich Mueller
- The Wicked Dreams of Paula Schultz
1968 Klaus
- Star Spangled Salesman
1968 Chief's Boss
- The Doris Day Show
1968 Werner Klemperer
- Batman
1966 Colonel Klink
- Ship of Fools
1965 Lt. Huebner
- Dark Intruder
1965 Prof. Malaki
- Lost in Space
1965 Bolix
- Hogan's Heroes
1965 Wilhelm Klink
- Youngblood Hawke
1964 Mr. Leffer
- Voyage to the Bottom of the Sea
1964 Dr. Gamma (uncredited)
- The Man from U.N.C.L.E.
1964 Laslo Kurasov
- The Dakotas
1963
- Bob Hope Presents the Chrysler Theatre
1963 Colonel Wertha
- Escape from East Berlin
1962 Walter Brunner
- Judgment at Nuremberg
1961 Emil Hahn
- Operation Eichmann
1961 Adolf Eichmann
- The Islanders
1960 Michel Serati
- Thriller
1960 Mr. Clark
- Checkmate
1960 Franz Leder
- The Case of the Dangerous Robin
1960 Jan Hoveen
- Peter Loves Mary
1960 Blake Barker
- Judgment at Nuremberg
1959 Emil Hahn
- Rawhide
1959
- One Step Beyond
1959 Herr Bautmann
- Men Into Space
1959
- Adventures in Paradise
1959 Kuberli
- The Alaskans
1959
- The Third Man
1959
- The Troubleshooters
1959 Stehlmann
- Houseboat
1958 Harold Messner
- The Goddess
1958 Joe Wilsey
- The High Cost of Loving
1958 Joseph Jessup
- 77 Sunset Strip
1958
- Steve Canyon
1958 Linz
- Istanbul
1957 Paul Renkov
- Kiss Them for Me
1957 Lt. Walter Wallace
- Perry Mason
1957 Stefan Riker
- The Thin Man
1957
- M Squad
1957 Heinrich Ronn
- Maverick
1957 Alex Jennings
- The Wrong Man
1956 Dr. Bannay (uncredited)
- Death of a Scoundrel
1956 Herbert Bauman (Clementi's lawyer)
- 5 Steps to Danger
1956 Dr. Frederick Simmons
- Flight to Hong Kong
1956 Bendesh
- Wire Service
1956 Krylov
- Playhouse 90
1956 Emil Hahn
- Gunsmoke
1955 Clifton Bunker
- Alfred Hitchcock Presents
1955 Professor Klopka / Captain Kriza
- Matinee Theater
1955
- Navy Log
1955
- Climax!
1954
- Studio 57
1954 Dubrov
- General Electric Theater
1953 Mr. Muller
- China Smith
1952
- The Philco Television Playhouse
1948 Leopold
- Studio One
1948 Dorfmann
