From Wikipedia, the free encyclopedia. Don Most (born August 8, 1953; Brooklyn, New York) is an American actor best known for his role as Ralph Malph on the television series Happy Days.
| Movie | Unsung Hero | Pierce | 2024-04-26 |
| Movie | Far Haven | Chester Tilly | 2023-09-03 |
| Movie | When George Got Murdered | C.o. Wilson | 2022-05-05 |
| Movie | More Than Miyagi: The Pat Morita Story | Self | 2021-02-01 |
| Series | The Odd Couple | Fred | 2015-02-19 |
| Movie | Follow | Mr. Reynolds | 2015-09-26 |
| Movie | The Yankles | Frankie Dubs | 2009-11-15 |
| Movie | The Great Buck Howard | Tonight Show Producer | 2008-01-18 |
| Series | Century City | Unknown | 2004-03-16 |
| Series | Family Guy | Unknown | 1999-01-31 |
| Movie | EDtv | Benson | 1999-03-26 |
| Series | The Crow: Stairway to Heaven | Unknown | 1998-09-25 |
| Movie | Dead Man's Island | Burton Andrews | 1996-03-05 |
| Series | Sliders | Unknown | 1995-03-22 |
| Series | MADtv | Unknown | 1995-10-14 |
| Series | The New Lassie | Unknown | 1989-09-08 |
| Movie | Hägar the Horrible | Lute Instructor | 1989-11-01 |
| Movie | Stewardess School | George Bunkle | 1986-08-01 |
| Series | Murder, She Wrote | Unknown | 1984-09-30 |
| Series | Charles in Charge | Unknown | 1984-10-03 |
| Movie | Leo and Loree | 1980-01-04 | |
| Movie | Daniel and Nebuchadnezzar | Daniel | 1979-01-01 |
| Movie | Huckleberry Finn | Tom Sawyer | 1978-03-31 |
| Series | The Captain and Tennille | Unknown | 1976-09-20 |
| Movie | Crazy Mama | Shawn | 1975-06-01 |
| Series | Happy Days | Ralph Malph | 1974-01-15 |
| Series | Police Story | Unknown | 1973-03-20 |
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