| Movie | 1990 | The Godfather Part III | Don Altobello | |
| Movie | 2003 | Mystic River | Mr. Loonie (uncredited) | |
| Movie | 1960 | The Magnificent Seven | Calvera | |
| Movie | 1959 | For Whom the Bell Tolls | Rafael | |
| Movie | 2006 | The Holiday | Arthur | |
| Movie | 1966 | How to Steal a Million | Davis Leland | |
| Movie | 1963 | The Victors | Sgt. Craig | |
| Movie | 1994 | It's Alive: The True Story of Frankenstein | Narrator | |
| Movie | 1994 | Martha Graham: The Dancer Revealed | Self | |
| Movie | 1995 | Yul Brynner: The Man Who Was King | Self | |
| Movie | 1965 | Genghis Khan | Shah of Khwarezm | |
| Movie | 1977 | The Deep | Adam Coffin | |
| Movie | 1986 | Tough Guys | Leon B. Little | |
| Movie | 2000 | Keeping the Faith | Rabbi Ben Lewis | |
| Movie | 1996 | The Associate | Donald Fallon | |
| Movie | 1980 | The Hunter | Ritchie Blumenthal | |
| Movie | 1961 | The Misfits | Guido | |
| Movie | 1965 | Lord Jim | The General | |
| Movie | 2010 | The Ghost Writer | Old man | |
| Movie | 1992 | Article 99 | Sam Abrams | |
| Movie | 1993 | Vendetta II: The New Mafia | Frank Latella | |
| Movie | 1978 | Circle of Iron | Man-in-Oil | |
| Movie | 1968 | Ace High | Cacopoulos | |
| Movie | 1958 | The Lineup | Dancer | |
| Movie | 1962 | How the West Was Won | Charlie Gant | |
| Movie | 1977 | The Domino Principle | Gen. Reser | |
| Movie | 1990 | The Two Jakes | Cotton Weinberger | |
| Movie | 2005 | A Taste Of Jupiter | Arturo | |
| Movie | 2005 | Steve McQueen: The Essence of Cool | Self | |
| Movie | 2010 | Wall Street: Money Never Sleeps | Julie Steinhardt | |
| Movie | 2007 | Mama's Boy | Seymour Warburton | |
| Movie | 1956 | Baby Doll | Silva Vacarro | |
| Movie | 1987 | Nuts | Dr. Herbert A. Morrison | |
| Movie | 1979 | Winter Kills | Joe Diamond | |
| Movie | 1992 | Night and the City | Peck | |
| Movie | 1964 | The Moon-Spinners | Stratos | |
| Movie | 2005 | The Moon and the Son: An Imagined Conversation | Father | |
| Movie | 1976 | Plot of Fear | Peter Struwwel | |
| Movie | 1958 | The Gift of the Magi | Narrator | |
| Movie | 1995 | Two Much | Sheldon | |
| Movie | 1960 | Seven Thieves | Poncho | |
| Movie | 1987 | The Impossible Spy | Yacov | |
| Movie | 1979 | Firepower | Sal Hyman | |
| Movie | 1988 | Funny | Self | |
| Movie | 1969 | Mackenna's Gold | Ben Baker | |
| Movie | 1977 | The Sentinel | Detective Gatz | |
| Movie | 1986 | Rocket to the Moon | Mr. Prince | |
| Movie | 1987 | Hollywood Uncensored | Self | |
| Movie | 1982 | The Executioner's Song | Vern Damico | |
| Movie | 1974 | Crazy Joe | Don Vittorio | |
| Movie | 1992 | Mistress | George Lieberhof | |
| Movie | 1980 | Guri | | |
| Movie | 1957 | The Lark | Dauphin | |
| Movie | 1970 | Zig Zag | Mario Gambretti | |
| Movie | 2000 | Uninvited | Alan Strasser | |
| Movie | 1973 | Cinderella Liberty | Lynn Forshay | |
| Movie | 1978 | Movie Movie | Vince Marlow / Pop | |
| Movie | 1975 | Shoot First… Ask Questions Later | Sheriff Edward Gideon / aka Black Jack | |
| Movie | 1980 | Memoirs of a Movie Palace: The Kings of Flatbush | Self - Narrator (voice) | |
| Movie | 2004 | The Easter Egg Adventure | Narrator (voice) | |
| Movie | 1968 | A Lovely Way to Die | Tennessee Fredericks | |
| Movie | 1984 | Sam's Son | Sam Orowitz | |
| Movie | 1973 | A Cold Night's Death | Frank Enari | |
| Movie | 2003 | Broadway: The Golden Age, by the Legends Who Were There | Self | |
| Movie | 2009 | The Toe Tactic | Maestro | |
| Movie | 1970 | The People Next Door | Arthur Mason | |
| Movie | 1992 | The Donner Party | voice | |
| Movie | 2010 | Ahead of Time: The Extraordinary Journey of Ruth Gruber | Mordechai Rossman (voice) | |
| Movie | 1978 | Girlfriends | Rabbi Gold | |
| Movie | 1962 | Hemingway’s Adventures of a Young Man | John | |
| Movie | 1977 | Nasty Habits | Monsignor | |
| Movie | 1974 | Houston, We've Got a Problem | Narrator (voice) | |
| Movie | 1995 | Elia Kazan: A Director's Journey | Narrator | |
| Movie | 1966 | The Poppy Is Also a Flower | 'Happy' Locarno | |
| Movie | 1971 | Don't Turn the Other Cheek | Maz Lozoya | |
| Movie | 1971 | Romance of a Horsethief | Kifke | |
| Movie | 2002 | Monday Night Mayhem | Leonard Goldenson | |
| Movie | 1963 | Act One | Warren Stone | |
| Movie | 1968 | How to Save a Marriage and Ruin Your Life | Harry Hunter | |
| Movie | 1964 | Kisses for My President | Raphael Valdez Jr. | |
| Movie | 2002 | Cinerama Adventure | Self | |
| Movie | 1970 | The Adventures of Gerard | Napoleon Bonaparte | |
| Movie | 1967 | The Tiger Makes Out | Ben Harris | |
| Movie | 2014 | Showing Up | Self | |
| Movie | 1981 | Skokie | Bert Silverman | |
| Movie | 1988 | Hello Actors Studio | Self | |
| Movie | 1970 | The Angel Levine | Delicatessen Clerk | |
| Movie | 1970 | The Reason Why | Charles | |
| Movie | 1969 | The Brain | Frankie Scannapieco, godfather of the Italian mafia | |
| Movie | 1992 | Nonsense and Lullabyes: Nursery Rhymes | (voice) | |
| Movie | 1992 | Nonsense and Lullabyes: Poems | (voice) | |
| Movie | 1984 | Anatomy of an Illness | Dr. William Hitzig | |
| Movie | 1981 | The Salamander | General Leporello | |
| Movie | 1973 | Stateline Motel | Joe | |
| Movie | 2004 | Reconstructing 'The Good, The Bad And The Ugly' | Self | |
| Movie | 1998 | Naked City: Justice with a Bullet | Deluca | |
| Movie | 1975 | Eye of the Cat | Cesare | |
| Movie | 2008 | New York, I Love You | Abe | |
| Movie | 2006 | The Linen Book: Lost Images From 'The Magnificent Seven' | Self | |
| Movie | 2022 | Rat Pack | Self (archive footage) | |
| Movie | 1966 | The Good, the Bad and the Ugly | Tuco Ramirez | |
| Movie | 1990 | Sanford Meisner: The American Theatre's Best Kept Secret | Self | |
| Movie | 2003 | The Education of Gore Vidal | Self | |
| Movie | 1985 | Murder: By Reason of Insanity | Dr. Huffman | |
| Movie | 1971 | Paradise Lost | Leo Gordon | |
| Movie | 1985 | Embassy | Joe Verga | |
| Movie | 1958 | The Plot to Kill Stalin | Poskrebyshev | |
| Movie | 2003 | Time Machine: When Cowboys Were King | Self / Narrator | |
| Movie | 2005 | James Dean: Sense Memories | Self | |
| Movie | 2008 | Vote and Die: Liszt for President | Joe Nightingale | |
| Movie | 1996 | Sex, Censorship and the Silver Screen | Quote Reader | |
| Movie | 1987 | Spark Among the Ashes: A Bar Mitzvah in Poland | Narrator (voice) | |
| Movie | 2000 | Clint Eastwood: Out of the Shadows | Self | |
| Movie | 1992 | Legacy of Lies | Moses Resnick | |
| Movie | 1978 | The Pirate | Ben Ezra | |
| Movie | 2007 | Brando | Self | |
| Movie | 1978 | Little Italy | Don Gerolamo Giarra | |
| Movie | 1988 | An Empire of Reason | Anti-Federalist Spokesman | |
| Movie | 1990 | The Godfather Family: A Look Inside | Self / Don Altobello | |
| Movie | 1991 | Coney Island | Self - Actor | |
| Movie | 2000 | The Bookfair Murders | Erich Schmidt | |
| Movie | 2015 | The Train | Andre | |
| Movie | 1991 | Terezin Diary | Narrator | |
| Movie | 1992 | Teamster Boss: The Jackie Presser Story | Bill Presser | |
| Movie | 2006 | The Hoax | Noah Dietrich | |
| Movie | 2003 | Horatio's Drive: America's First Road Trip | Other Voices (voice) | |
| Movie | 1994 | Marilyn Monroe: The Mortal Goddess | Self | |
| Movie | 1959 | I, Don Quixote | Sancho Panza / Cervantes' Manservant | |
| Movie | 2000 | Guns for Hire: The Making of 'The Magnificent Seven' | Self | |
| Movie | 1974 | Indict and Convict | DeWitt Foster | |
| Movie | 2003 | Rita | Self | |
| Movie | 1996 | Honey Sweet Love | Don Siro | |
| Movie | 1996 | The Search for Dracula | Narrator | |
| Movie | 1981 | The Pride of Jesse Hallam | Sal Galucci | |
| Movie | 2006 | Sergio Leone: The Way I See Things | Self | |
| Movie | 1996 | O. Henry's Christmas | Behrman ("The Last Leaf") | |
| Movie | 1980 | Fugitive Family | Olan Vacio | |
| Movie | 2004 | Leone's West | Self | |
| Movie | 1994 | The Man Who Drew Bug-Eyed Monsters | Self - Narrator (voice) | |
| Movie | 2004 | Unforgivable Blackness: The Rise and Fall of Jack Johnson | Other Voices (voice) | |
| Movie | 1971 | The Typists | Paul Cunningham | |
| Movie | 1960 | Lullaby | Johnny Horton | |
| Movie | 2002 | Making 'The Misfits' | Self | |
| Movie | 2008 | Il falso bugiardo | Self (archive footage) | |
| Movie | 2006 | The Real James Dean | Self | |
| Movie | 2004 | Por un puñado de sueños | Self - Interviewee | |
| Movie | 1982 | The Wall | Mauritzi Apt | |
| Movie | 1986 | Something in Common | Norman Voss | |
| Movie | 1995 | American Cinema | Narrator | |
| Movie | 1997 | Twentieth Century Fox: The First 50 Years | Self | |
| Movie | 2006 | Baby Doll: See No Evil | Self | |
| Movie | 1992 | Lincoln | William Crook (voice) | |
| Movie | 2004 | King of the Corner | Sol Spivak | |
| Movie | 1976 | Independence | Benjamin Franklin | |
| Movie | 1997 | The Trial of Adolf Eichmann | Pinchas Freudiger / David Ben-Gurion (voices) | |
| Movie | 1996 | Clark Gable: Tall, Dark, and Handsome | Self | |
| Movie | 1967 | The Owl Who Gave a Hoot | Mr. Owl (voice) | |
| Movie | 1995 | James Dean: A Portrait | Self | |
| Movie | 2009 | In the Name of Democracy | Narrator | |
| TV Show | 2001 | The Job | Mr. Weiss | 1 |
| TV Show | 1994 | Inside the Actors Studio | Self | 1 |
| TV Show | 1990 | Law & Order | Simon Vilanis | 1 |
| TV Show | 1961 | The Dick Powell Show | Manny Jacobs | 1 |
| TV Show | 2006 | Studio 60 on the Sunset Strip | Eli Weinraub | 1 |
| TV Show | 1966 | Batman | Mister Freeze | 2 |
| TV Show | 1979 | Tales of the Unexpected | Gerry Williams | 1 |
| TV Show | 1984 | Highway to Heaven | Timothy Charles | 1 |
| TV Show | 1962 | The Merv Griffin Show | Self | 5 |
| TV Show | 1958 | Naked City | Det. Peter Bane | 1 |
| TV Show | 1985 | The New Alfred Hitchcock Presents | Yosef Kandinsky | 1 |
| TV Show | 1959 | The David Susskind Show | Self | 1 |
| TV Show | 1973 | Kojak | Lee Curtin | 2 |
| TV Show | 1948 | The Ed Sullivan Show | Self | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | Dauphin | 1 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self - Guest | 1 |
| TV Show | 2003 | Veritas: The Quest | Rabbi | 1 |
| TV Show | 1960 | Outlaws | | 1 |
| TV Show | 1958 | Westinghouse Desilu Playhouse | Raymond Perez | 1 |
| TV Show | 1968 | Rowan & Martin's Laugh-In | Self | 1 |
| TV Show | 1954 | Climax! | Albert Anastasia | 1 |
| TV Show | 1948 | The Philco Television Playhouse | | 2 |
| TV Show | 1985 | Our Family Honor | Vincent Danzig | 13 |
| TV Show | 1966 | CBS Playhouse | Douglas Lambert | 1 |
| TV Show | 1949 | Lights Out | Giovanni | 1 |
| TV Show | 1977 | The Hollywood Greats | Self | 1 |
| TV Show | 1984 | Murder, She Wrote | Salvatore Gambini | 1 |
| TV Show | 1996 | The West | Self | 9 |
| TV Show | 1958 | Naked City | Georgie | 1 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self | 7 |
| TV Show | 1961 | The Mike Douglas Show | Self | 7 |
| TV Show | 1983 | Reading Rainbow | Himself - Narrator (voice) | 1 |
| TV Show | 1948 | Studio One | Ozep | 1 |
| TV Show | 1948 | Studio One | Peter Hendon | 1 |
| TV Show | 1948 | The Philco Television Playhouse | Nacho | 1 |
| TV Show | 2008 | The War | Narrator (voice) | 7 |
| TV Show | 1977 | Seventh Avenue | Gus Farber | 3 |
| TV Show | 1985 | Christopher Columbus | Padre Fernando De Talavera | 4 |
| TV Show | 1982 | Wogan | Self | 1 |
| TV Show | 2004 | Stroker and Hoop | Narrator (voice) | 1 |
| TV Show | 1950 | What's My Line? | Self - Mystery Guest | 1 |
| TV Show | 1957 | Tonight Starring Jack Paar | Self | 4 |
| TV Show | 1994 | Baseball | Various (voice) | 0 |
| TV Show | 1956 | Playhouse 90 | Rafael | 2 |
| TV Show | 1994 | ER | Mr. Langston | 1 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 2 |
| TV Show | 1982 | American Playhouse | Mr. Prince | 1 |
| TV Show | 1982 | The Executioner's Song | Vern Damico | 2 |
| TV Show | 1957 | Suspicion | | 1 |
| TV Show | 2003 | Whoopi | Norman | 1 |
| TV Show | 1971 | Great Performances | Self | 1 |
| TV Show | 1958 | Shirley Temple's Storybook | Simon | 1 |
| TV Show | 1952 | Omnibus | | 1 |
| TV Show | 1994 | Baseball | (voice) | 7 |
