Filmography41 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2005 | The War at HomeSeries | Principal | 57 |
| 2005 | Angels with AnglesMovie | Tobacconist #1 | 57 |
| 2003 | ABC's 50th Anniversary CelebrationMovie | Self | 55 |
| 1999 | Television: The First Fifty YearsMovie | Theodore 'Beaver' Cleaver (archive footage) | 51 |
| 1998 | Hollywood SquaresSeries | Self - Panelist | 50 |
| 1998 | Conrad BloomSeries | Himself | 50 |
| 1998 | Vengeance UnlimitedSeries | Lucas Zimmerman | 50 |
| 1994 | The Other ManMovie | Sergeant Dun | 46 |
| 1993 | Diagnosis: MurderSeries | Mr. Lustig | 45 |
| 1993 | PhenomSeries | Himself | 45 |
| 1990 | Parker Lewis Can't LoseSeries | Theodore Musso | 42 |
| 1990 | Down the DrainMovie | Policeman (desk) | 42 |
| 1987 | Married... with ChildrenSeries | Jerry Mathers | 39 |
| 1987 | Back to the BeachMovie | Judge #2 | 39 |
| 1987 | It's Howdy Doody Time: A 40-Year CelebrationMovie | Himself | 39 |
| 1984 | High School U.S.A.Movie | Mr. Sirota | 36 |
| 1983 | Hardcastle and McCormickSeries | Jerry Mathers | 35 |
| 1983 | Still the BeaverMovie | Theodore Cleaver | 35 |
| 1981 | The Girl, the Gold Watch & DynamiteMovie | Deputy Henry Thomas Watts | 33 |
| 1978 | Flying HighSeries | Chuck Wallace | 30 |
| 1977 | The Love BoatSeries | Beaver Cleaver | 29 |
| 1975 | Saturday Night LiveSeries | Self (uncredited) | 27 |
| 1966 | BatmanSeries | Pop (uncredited) | 18 |
| 1961 | The Mike Douglas ShowSeries | Self | 13 |
| 1960 | My Three SonsSeries | Joe Lawrie | 12 |
| 1958 | The Deep SixMovie | Steve Innes | 10 |
| 1957 | Leave It to BeaverSeries | Theodore 'Beaver' Cleaver | 9 |
| 1956 | The Dinah Shore Chevy ShowSeries | Self | 8 |
| 1956 | Bigger Than LifeMovie | Freddie (uncredited) | 8 |
| 1956 | That Certain FeelingMovie | Norman Taylor | 8 |
| 1955 | Matinee TheaterSeries | — | 7 |
| 1955 | The Trouble with HarryMovie | Arnie Rogers | 7 |
| 1954 | LassieSeries | Ken Hines | 6 |
| 1954 | Studio 57Series | Theodore 'Beaver' Cleaver | 6 |
| 1954 | The George Gobel ShowSeries | Self | 6 |
| 1954 | This Is My LoveMovie | David Myer | 6 |
| 1954 | The Star of BethlehemMovie | Joseph | 6 |
| 1953 | General Electric TheaterSeries | Tommy | 5 |
| 1952 | The Adventures of Ozzie and HarrietSeries | Trick-Or-Treat Child | 4 |
| 1952 | Son of PalefaceMovie | Child at Finale (uncredited) | 4 |
| 1950 | Lux Video TheatreSeries | Little Boy | 2 |