Credits

• 2009 · Musical Mel: Inventing The Inquisition as Self (archive footage)
• 2003 · Just Married as Father Robert
• 1997 · Wag the Dog as Senator Nole
• 1997 · Police Academy: The Series as Commandant Eric Lassard
• 1996 · The Crucible as Judge Samuel Sewall
• 1995 · Sliders as Old Quinn Mallory
• 1994 · Vanya on 42nd Street as Serybryakov
• 1994 · Chicago Hope as Brook Austin
• 1994 · Police Academy: Mission to Moscow as Commandant Lassard
• 1994 · The Fantastic Four as Professor
• 1993 · Stepmonster as Norman
• 1992 · Hearts Afire as Senator Strobe Smithers
• 1991 · Dinosaurs as Elder in Chief (voice)
• 1989 · The New Lassie as
• 1989 · Police Academy 6: City Under Siege as Lassard
• 1988 · Police Academy 5: Assignment Miami Beach as Lassard
• 1987 · A Taxi Driver in New York as l'ammiraglio
• 1987 · The Days and Nights of Molly Dodd as Arthur Feldman
• 1987 · Police Academy 4: Citizens on Patrol as Commandant Lassard
• 1987 · Ternosecco as Don Salvatore
• 1986 · Police Academy 3: Back in Training as Commandant Lassard
• 1986 · Matlock as Judge Hollis D. Dunaway
• 1985 · It's Punky Brewster as
• 1985 · Police Academy 2: Their First Assignment as Commandant Lassard
• 1984 · Micki & Maude as Dr. Eugene Glztszki
• 1984 · It Came Upon the Midnight Clear as Arch Angel
• 1984 · Mom's On Strike as The Commander
• 1984 · Punky Brewster as Henry Warnimont
• 1984 · Police Academy as Commandant Lassard
• 1984 · Blue Thunder as Dr. Willi Von Hartig
• 1983 · To Be or Not to Be as Ravitch
• 1983 · I'm Going to Be Famous as
• 1982 · Tootsie as John Van Horn
• 1982 · Cheers as Malcolm Kramer
• 1982 · Hotel as
• 1982 · Dead Men Don't Wear Plaid as Dr. Forrest
• 1981 · Evita Peron as Evita's Doctor
• 1980 · Altered States as Dr. Wissenschaft
• 1980 · Scruples as John Prince
• 1979 · Breaking Up Is Hard to Do as Wiley
• 1979 · Just Friends as Rock La Rue
• 1978 · WKRP in Cincinnati as Henri
• 1977 · The Girl in the Empty Grave as David Alden
• 1977 · Carter Country as
• 1976 · Nickelodeon as Reginald Kingsley
• 1976 · Quincy, M.E. as
• 1976 · Baa Baa Black Sheep as Claire Lee Chennault
• 1976 · Rich Man, Poor Man - Book II as Max Vincent
• 1976 · The Flying Misfits as Maj. Gen. Claire Lee Chennault
• 1976 · Delvecchio as Commissioner Schaub
• 1976 · Woman of the Year as Harding
• 1976 · The Quest as
• 1976 · City of Angels as
• 1975 · Song of the Succubus as C.J. Meredith
• 1975 · Trilogy of Terror as Dr. Chester Ramsey
• 1974 · The Six Million Dollar Man as General Wiley
• 1973 · The Way We Were as El Morocco Captain
• 1973 · Slaughter's Big Rip-Off as Warren
• 1973 · The Boy Who Cried Werewolf as Dr Marderosian
• 1972 · Search as
• 1971 · McMillan & Wife as Burton Rhoner
• 1971 · Columbo as Everett
• 1971 · Columbo as Frenchman
• 1971 · Cannon as
• 1971 · Doctors' Wives as Paul McGill
• 1970 · McCloud as
• 1969 · Marooned as Mission Director
• 1968 · Hawaii Five-O as Thurman Elliott
• 1967 · Mannix as Professor Brendan
• 1966 · Mission: Impossible as Dr. Paul van Bergner
• 1966 · The Group as Brook Latham
• 1965 · Hogan's Heroes as
• 1964 · Joy House as
• 1963 · The Patty Duke Show as
• 1963 · PT 109 as PT Flotilla Captain (uncredited)
• 1962 · The Gallant Men as
• 1962 · The Alfred Hitchcock Hour as Mr. Campbell
• 1959 · Hawaiian Eye as Roger Korvin
• 1959 · Bonanza as Senator Purdy
• 1955 · Cheyenne as Rod Delaplane
• 1955 · One Touch of Venus as Whitelaw Savory