| Movie | 1990 | Gremlins 2: The New Batch | Brain Gremlin (voice) | |
| Movie | 2003 | Down with Love | Theodore Banner | |
| Movie | 1964 | Send Me No Flowers | Arnold Nash | |
| Movie | 1959 | Pillow Talk | Jonathan Forbes | |
| Movie | 1942 | Saboteur | Cameraman (uncredited) | |
| Movie | 1965 | The Alphabet Murders | Hercule Poirot | |
| Movie | 1979 | Scavenger Hunt | Henry Motley | |
| Movie | 1960 | Let's Make Love | Alexander Coffman | |
| Movie | 1972 | Everything You Always Wanted to Know About Sex *But Were Afraid to Ask | The Operator | |
| Movie | 1993 | Fatal Instinct | Judge Skanky | |
| Movie | 1962 | Boys' Night Out | George Drayton | |
| Movie | 1961 | Lover Come Back | Peter 'Pete' Ramsey | |
| Movie | 1969 | Hello Down There | Fred Miller | |
| Movie | 1964 | 7 Faces of Dr. Lao | Dr. Lao / The Abominable Snowman / Merlin the Magician / Apollonius of Tyana / Pan / The Giant Serpent / Medusa / Audience Member | |
| Movie | 1989 | The Man in the Brown Suit | Rev. Edward Chichester | |
| Movie | 1960 | The Adventures of Huckleberry Finn | King of France | |
| Movie | 1957 | Will Success Spoil Rock Hunter? | Rockwell P. Hunter / Himself | |
| Movie | 1959 | The Mating Game | Lorenzo Charlton | |
| Movie | 1964 | The Brass Bottle | Harold Ventimore | |
| Movie | 1977 | The Beatles Forever | Self | |
| Movie | 1966 | Our Man in Marrakesh | Andrew Jessel | |
| Movie | 1980 | The Gong Show Movie | Performer in Tuxedo | |
| Movie | 1986 | Sunday Drive | Uncle Bill | |
| Movie | 1962 | Two Weeks in Another Town | Ad Lib in Lounge (uncredited) | |
| Movie | 1957 | Oh, Men! Oh, Women! | Cobbler | |
| Movie | 1980 | Foolin' Around | Peddicord | |
| Movie | 1963 | Island of Love | Paul Ferris | |
| Movie | 1957 | No Down Payment | Jerry Flagg | |
| Movie | 1988 | Happy Birthday, Bob: 50 Stars Salute Your 50 Years with NBC | Self | |
| Movie | 1982 | Oops, Those Hollywood Bloopers! | Self (archive footage) | |
| Movie | 1965 | Fluffy | Prof. Daniel Potter | |
| Movie | 1969 | The Littlest Angel | Democritus | |
| Movie | 1986 | My Little Pony: The Movie | Moochick (voice) | |
| Movie | 2009 | Paris Hilton, Inc. | Self (archive footage) | |
| Movie | 1988 | Joan Rivers and Friends Salute Heidi Abromowitz | Tony Randall | |
| Movie | 1967 | And Still Champion! The Story of Archie Moore | Self | |
| Movie | 1990 | Night of 100 Stars III | Self | |
| Movie | 1990 | Sanford Meisner: The American Theatre's Best Kept Secret | Self | |
| Movie | 1991 | Doris Day: A Sentimental Journey | Self | |
| Movie | 1986 | The Fantasy Film Worlds of George Pal | Self | |
| Movie | 1988 | Save the Dog! | Oliver Bishop | |
| Movie | 1981 | Sidney Shorr: A Girl's Best Friend | Sidney Shorr | |
| Movie | 1985 | Night of 100 Stars II | Self | |
| Movie | 1999 | Television: The First Fifty Years | Self (archive footage) | |
| Movie | 1982 | The King of Comedy | Tony Randall | |
| Movie | 1978 | Kate Bliss and the Ticker Tape Kid | Lord Seymour Devery | |
| Movie | 1966 | Gambit | Nightclub Patron (uncredited) | |
| Movie | 1989 | That's Adequate | Self - Host | |
| Movie | 1987 | Walt Disney World Celebrity Circus | Self - Host | |
| Movie | 1985 | Hitler's SS: Portrait in Evil | Putzi (The Comedian) | |
| Movie | 1999 | Louis Prima: The Wildest! | Himself (archive footage) | |
| Movie | 1969 | The Woody Allen Special | Self | |
| Movie | 1989 | It Had to Be You | Milton | |
| Movie | 1993 | The Odd Couple: Together Again | Felix Unger | |
| Movie | 1984 | The Pigs vs. The Freaks | Rambaba Organimus | |
| Movie | 1984 | My Little Pony | Moochick (voice) | |
| Movie | 1985 | Muppet Video: The Kermit and Piggy Story | Self | |
| Movie | 1962 | Arsenic & Old Lace | Mortimer Brewster | |
| Movie | 1987 | Lyle, Lyle Crocodile: The Musical - The House on East 88th Street | Narrator/Signor Valenti (voice) | |
| Movie | 1964 | Robin and the 7 Hoods | Hood (uncredited) | |
| Movie | 2011 | Paul Williams Still Alive | Self (archive footage) | |
| Movie | 1991 | The Boss | Narrator | |
| Movie | 1992 | A Christmas Celebration: Send Round the Song | Self - Narrator / Host | |
| Movie | 1982 | Night of 100 Stars | Self | |
| Movie | 1994 | Robot in the Family | Golddigger (voice) | |
| Movie | 1991 | Stars and Stripes: Hollywood and World War II | Narrator | |
| TV Show | 1986 | My Little Pony | | 65 |
| TV Show | 1968 | Here's Lucy | Rudolph Springer | 1 |
| TV Show | 1976 | The Sonny and Cher Show | | 1 |
| TV Show | 1970 | The Odd Couple | Felix Unger | 114 |
| TV Show | 1962 | The Merv Griffin Show | Self | 14 |
| TV Show | 1948 | Studio One | | 1 |
| TV Show | 1948 | The Ed Sullivan Show | Self | 1 |
| TV Show | 1981 | Gimme a Break! | | 1 |
| TV Show | 1953 | General Electric Theater | Justin Hale | 1 |
| TV Show | 1952 | Mister Peepers | Harvey Weskit | 48 |
| TV Show | 1951 | Hallmark Hall of Fame | Mortimer Brewster | 1 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self - Guest | 3 |
| TV Show | 1958 | Westinghouse Desilu Playhouse | | 1 |
| TV Show | 1976 | Battle of the Network Stars | | 1 |
| TV Show | 1998 | Brother's Keeper | Tony | 1 |
| TV Show | 1964 | The Hollywood Palace | Self - Host | 1 |
| TV Show | 1969 | The Glen Campbell Goodtime Hour | Self | 3 |
| TV Show | 1953 | The Pepsi-Cola Playhouse | | 1 |
| TV Show | 1980 | The Big Show | Self | 1 |
| TV Show | 1981 | Love, Sidney | Sidney Shorr | 46 |
| TV Show | 1970 | The Flip Wilson Show | Self | 2 |
| TV Show | 1948 | The Philco Television Playhouse | | 1 |
| TV Show | 1966 | ABC Stage 67 | Inspector Berry / Geoffrey Judge | 1 |
| TV Show | 1956 | The Dinah Shore Chevy Show | Self | 4 |
| TV Show | 1976 | The Tony Randall Show | Walter Franklin | 44 |
| TV Show | 1956 | The Steve Allen Show | Self - Guest | 2 |
| TV Show | 1968 | That's Life | | 32 |
| TV Show | 1963 | Vacation Playhouse | Willie Coogan | 1 |
| TV Show | 1953 | The Oscars | Self | 2 |
| TV Show | 1976 | The Captain and Tennille | Self | 1 |
| TV Show | 1987 | The Great American Quiz Show | | 1 |
| TV Show | 1975 | Cher | Self | 1 |
| TV Show | 1976 | The Muppet Show | Self - Special Guest Star | 1 |
| TV Show | 1974 | Tony Orlando and Dawn | Self | 3 |
| TV Show | 1958 | The Dick Clark Show | Self | 1 |
| TV Show | 1975 | Saturday Night Live | Self - Cameo (uncredited) | 1 |
| TV Show | 1961 | The Mike Douglas Show | Self | 5 |
| TV Show | 1961 | The Mike Douglas Show | Self - Co-Host | 4 |
| TV Show | 1994 | The Magic School Bus | (voice) | 1 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self | 10 |
| TV Show | 1977 | The Brady Bunch Hour | | 1 |
| TV Show | 1960 | Checkmate | Luther Gage | 1 |
| TV Show | 1950 | What's My Line? | Self - Mystery Guest | 3 |
| TV Show | 1948 | Studio One | Walter | 1 |
| TV Show | 1972 | The Julie Andrews Hour | Self | 1 |
| TV Show | 1951 | Hallmark Hall of Fame | | 1 |
| TV Show | 1967 | The Carol Burnett Show | Self - Guest / Various Characters | 1 |
| TV Show | 1956 | The Steve Allen Show | Self | 1 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 2 |
| TV Show | 1956 | Tony Awards | Self - Host | 1 |
| TV Show | 1967 | The Carol Burnett Show | Various Characters | 1 |
| TV Show | 1948 | The Philco Television Playhouse | Ernest Winkler | 1 |
| TV Show | 1950 | What's My Line? | Self - Panelist | 21 |
| TV Show | 2006 | Legends | Pete Ramsey (archive footage) (uncredited) | 1 |
| TV Show | 1968 | The Dick Cavett Show | Self - Guest | 5 |
| TV Show | 1993 | Late Night with Conan O'Brien | Self | 1 |
| TV Show | 1962 | The Alfred Hitchcock Hour | Hadley Purvis | 1 |
| TV Show | 1963 | The Danny Kaye Show | Self | 1 |
| TV Show | 1958 | Kraft Music Hall | Self - Host | 1 |
| TV Show | 1969 | Love, American Style | Mark | 1 |
| TV Show | 1953 | The Motorola Television Hour | Harry | 1 |
