John McNamara Filmography
| 1962 | Empire (TV Series) · as 5th Man |
| 1960 | Portrait in Black · as Minister |
| 1960 | Ma Barker's Killer Brood · as Mr. Khortney |
| 1959 | Men into Space (TV Series) · as Gen. Withers |
| 1959 | Markham (TV Series) · as Raphael Ariargua |
| 1959 | Imitation of Life · as Doctor |
| 1958 | The Lost Missile · as Conad Colonel |
| 1958 | U.S. Marshal (TV Series) · as Captain Cory |
| 1958 | War of the Colossal Beast · as The Neurologist |
| 1958 | Crash Landing · as Phil Burton |
| 1958 | The Return of Dracula · as Sheriff Bicknell (uncredited) |
| 1958 | Live Fast, Die Young · as Judge |
| 1958 | The True Story of Lynn Stuart · as Doctor |
| 1958 | Suicide Battalion · as Colonel Craig |
| 1957 | The Californians (TV Series) · as Captain Whitehead |
| 1957 | Perry Mason (TV Series) · as Peter Cole |
| 1957 | Slaughter on 10th Avenue · as Judge |
| 1957 | From Hell It Came · as Professor Clark |
| 1957 | Whirlybirds (TV Series) · as Donald Ashley |
| 1956 | The Sheriff of Cochise (TV Series) · as Lewis Branton |
| 1956 | The Adventures of Jim Bowie (TV Series) · as Doctor |
| 1955 | |
| 1955 | The Millionaire (TV Series) · as Dr. Carl Huston |