Acting

—		Rawhide 0 episodes
—		China Smith 2 episodes

1993

1 episode as Colonel Klink (voice)

1992

1 episode as William Unger

1988

1 episode as Self - Nominee

1986

1 episode

1983

1 episode as Felix Randolph

1981

1 episode

1979

1 episode as Mr. Perkins

1978

1 episode as Henry Hastings

1977		Tabitha 1 episode
1977		The Rhinemann Exchange 3 episodes as Franz Altmuller

1976

1 episode as Van Doren

1973

1 episode as Dr. Ernest Bleeker

1972		The Doris Day Show 1 episode as Werner Klemperer
1972		Night Gallery 1 episode

1971

1 episode as Self - Co-Host

1968

4 episodes as Self

1966		Batman 1 episode as Colonel Klink
1966		Lost in Space 1 episode as Bolix

1965		Hogan's Heroes 168 episodes as Wilhelm Klink
1965		Bob Hope Presents the Chrysler Theatre 1 episode as Colonel Wertha

1964

1 episode as Police Insp. Hurt

1963		The Dakotas 1 episode
1963		77 Sunset Strip 1 episode
1963		Perry Mason 1 episode as Ulric Zenas

1962		General Electric True 3 episodes
1962		Checkmate 1 episode as Franz Leder

1961		Adventures in Paradise 1 episode as Kuberli
1961		The Islanders 1 episode as Michel Serati
1961		Peter Loves Mary 1 episode as Blake Barker

1960		Thriller 1 episode as Mr. Clark
1960		The Case of the Dangerous Robin 1 episode as Jan Hoveen
1960		Men Into Space 1 episode
1960		The Third Man 1 episode
1960		The Alaskans 1 episode

1959		The Troubleshooters 1 episode as Stehlmann
1959		Have Gun, Will Travel 2 episodes
1959		Alfred Hitchcock Presents 1 episode as Mr. Ranks
1959		One Step Beyond 1 episode as Herr Bautmann
1959		Playhouse 90 1 episode as Emil Hahn
1959		Steve Canyon 1 episode as Linz
1959		Behind Closed Doors 1 episode

1958		Perry Mason 1 episode as Stefan Riker
1958		Gunsmoke 1 episode as Clifton Bunker
1958		The Thin Man 1 episode

1957		Maverick 1 episode as Alex Jennings
1957		M Squad 1 episode as Heinrich Ronn
1957		General Electric Theater 1 episode as Mr. Muller
1957		Wire Service 1 episode as Krylov
1957		Navy Log 1 episode

1956		Matinee Theater 1 episode
1956		Alfred Hitchcock Presents 1 episode as Professor Klopka / Captain Kriza

1955		Studio 57 1 episode as Dubrov
1955		Climax! 2 episodes

1953

2 episodes

1952

2 episodes as Leopold