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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1986 | Martillo Hammer | Newscaster | ★★★★☆ |
| 1979 | Buck Rogers: El aventurero del espacio | Major Elif | ★★★☆☆ |
| 1979 | Tales of the Unexpected | Joe | ★★★☆☆ |
| 1978 | The New Adventures of Heidi | Hotel Manager Krebbs | ★★☆☆☆ |
| 1977 | Loca escapada a Las Vegas | Bigby Powers | ★★★☆☆ |
| 1976 | Quincy, M.E. | John Casey | ★★★★☆ |
| 1975 | La mujer maravilla | General Miller | ★★★★☆ |
| 1974 | Teenager | ★★☆☆☆ | |
| 1974 | Tight as a Drum | Arnie Julian | ☆☆☆☆☆ |
| 1974 | Kolchak: The Night Stalker | Dr. Alan Ross | ★★★★☆ |
| 1974 | El hombre de los seis millones de dólares | Submarine Captain | ★★★★☆ |
| 1974 | El hombre de los seis millones de dólares | Det. Olmstead | ★★★★☆ |
| 1974 | El hombre de los seis millones de dólares | Joe | ★★★★☆ |
| 1974 | El hombre de los seis millones de dólares | General Meyers | ★★★★☆ |
| 1973 | Coffy | McHenry | ★★★☆☆ |
| 1973 | Almas de metal | Arthur Kalen (uncredited) | ★★★☆☆ |
| 1973 | The President's Plane Is Missing | Ground Crew Chief | ★★★☆☆ |
| 1973 | América violenta | Steinholtz | ★★★☆☆ |
| 1972 | The Groundstar Conspiracy | Reporter | ★★★☆☆ |
| 1972 | M*A*S*H | Helicopter Pilot | ★★★★☆ |
| 1971 | Hospital, hora cero | Attendant (uncredited) | ★★★☆☆ |
| 1971 | Nichols | Logan | ★★★☆☆ |
| 1970 | The Christine Jorgensen Story | Reporter | ★★☆☆☆ |
| 1970 | Tic, tic, tic | Bob Braddock | ★★★☆☆ |
| 1969 | Shock | FBI Agent Crosley | ★★☆☆☆ |
| 1969 | Con los ojos cerrados | Handsome Man | ★★★☆☆ |
| 1969 | The File on Devlin | The Sergeant | ☆☆☆☆☆ |
| 1968 | Cometieron dos errores | ★★★☆☆ | |
| 1968 | Área 12 | Ed Bowler | ★★★★☆ |
| 1967 | El valle de las muñecas | San Francisco Bar Patron (uncredited) | ★★★☆☆ |
| 1967 | Los invasores | Dorsey | ★★★☆☆ |
| 1966 | Misión: imposible | Guard | ★★★★☆ |
| 1963 | El fugitivo | Bus Driver | ★★★★☆ |
| 1962 | Dulce pájaro de juventud | Bud | ★★★☆☆ |
| 1962 | 13 calle oeste | Policeman (uncredited) | ★★★☆☆ |
| 1961 | Then There Were Three | Sgt. Travers | ★★★☆☆ |
| 1958 | General improvisado | Jeep Driver | ★★★☆☆ |
| 1957 | Have Gun, Will Travel | Abe Talltree | ★★★★☆ |
Películas destacadas de Barry Cahill
Estas son las películas más destacadas en las que ha trabajdo:
